I have searched for any existing and/or related issues.
I have searched for any existing and/or related discussions.
I have also searched in the CLOSED issues AND CLOSED discussions and found no related items (your issue might already be addressed on the development branch!).
I am using the latest version of Open WebUI.
Installation Method
Docker
Open WebUI Version
v0.8.10
Ollama Version (if applicable)
v0.18.0
Operating System
Ubuntu 24.04.4 LTS
Browser (if applicable)
Mozilla Firefox Snap for Ubuntu v148.0.2 (64-bit) / Google Chrome v146.0.7680.80 (Official Build) (64-bit)
Confirmation
I have read and followed all instructions in README.md.
I am using the latest version of both Open WebUI and Ollama.
I have included the browser console logs.
I have included the Docker container logs.
I have provided every relevant configuration, setting, and environment variable used in my setup.
I have clearly listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc).
I have documented step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation. My steps:
Start with the initial platform/version/OS and dependencies used,
Specify exact install/launch/configure commands,
List URLs visited, user input (incl. example values/emails/passwords if needed),
Describe all options and toggles enabled or changed,
Include any files or environmental changes,
Identify the expected and actual result at each stage,
Ensure any reasonably skilled user can follow and hit the same issue.
Expected Behavior
When visiting the Notes page from the sidebar and scrolling through the list of existing notes, the infinite scroller should fetch and append the older notes sequentially without throwing errors or halting the rendering sequence.
Actual Behavior
Scrolling through the list of notes triggers the Svelte error Uncaught Error: https://svelte.dev/e/each_key_duplicate, halting the rendering of the items. Any notes not initially displayed to the user fail to load as a result of the UI crashing.
Steps to Reproduce
Start an Open WebUI instance utilizing the v0.8.10 version on Ubuntu 24.04.4 LTS using Firefox v148.0.2.
Ensure you have enough notes in your account to trigger the pagination/infinite scroll behavior (at least more than one "page" of items returned by the API).
Open the browser console (F12 or Inspect -> Console).
Navigate to the Notes page via the sidebar /notes.
Scroll down to trigger the infinite scroll loader to fetch the next page of notes.
Observe the Svelte runtime error Uncaught Error: https://svelte.dev/e/each_key_duplicate in the browser dev tools console, and notice that the pagination fails to append the new list of notes to the UI.
Logs & Screenshots
Browser Console Error(s) (One may or may not be more helpful than the other for debugging/diagnosis of the issue)
This issue is caused by the Svelte keyed #each blocks inside src/lib/components/notes/Notes.svelte. Specifically, either lines 477 ({#each notesList as note, idx (note.id)}) or 563 ({#each notesList as note, idx (note.id)}) throw a duplicate key error because the note.id is not strictly unique among the rendered items array. When getItemsPage() appends the newly fetched pageItems arrays to items (items = [...items, ...pageItems];), overlapping or duplicate items bypass any deduplication logic and crash the each block since the identifier (note.id) appears more than once. Filtering out duplicates prior to setting the items state, or utilizing unique synthetic keys for rendering, would resolve this issue.
Originally created by @silentoplayz on GitHub (Mar 16, 2026).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/22740
### Check Existing Issues
- [x] I have searched for any existing and/or related issues.
- [x] I have searched for any existing and/or related discussions.
- [x] I have also searched in the CLOSED issues AND CLOSED discussions and found no related items (your issue might already be addressed on the development branch!).
- [x] I am using the latest version of Open WebUI.
### Installation Method
Docker
### Open WebUI Version
v0.8.10
### Ollama Version (if applicable)
v0.18.0
### Operating System
Ubuntu 24.04.4 LTS
### Browser (if applicable)
Mozilla Firefox Snap for Ubuntu v148.0.2 (64-bit) / Google Chrome v146.0.7680.80 (Official Build) (64-bit)
### Confirmation
- [x] I have read and followed all instructions in `README.md`.
- [x] I am using the latest version of **both** Open WebUI and Ollama.
- [x] I have included the browser console logs.
- [x] I have included the Docker container logs.
- [x] I have **provided every relevant configuration, setting, and environment variable used in my setup.**
- [x] I have clearly **listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup** (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc).
- [x] I have documented **step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation**. My steps:
- Start with the initial platform/version/OS and dependencies used,
- Specify exact install/launch/configure commands,
- List URLs visited, user input (incl. example values/emails/passwords if needed),
- Describe all options and toggles enabled or changed,
- Include any files or environmental changes,
- Identify the expected and actual result at each stage,
- Ensure any reasonably skilled user can follow and hit the same issue.
### Expected Behavior
When visiting the Notes page from the sidebar and scrolling through the list of existing notes, the infinite scroller should fetch and append the older notes sequentially without throwing errors or halting the rendering sequence.
### Actual Behavior
Scrolling through the list of notes triggers the Svelte error `Uncaught Error: https://svelte.dev/e/each_key_duplicate`, halting the rendering of the items. Any notes not initially displayed to the user fail to load as a result of the UI crashing.
### Steps to Reproduce
1. Start an Open WebUI instance utilizing the `v0.8.10` version on Ubuntu 24.04.4 LTS using Firefox v148.0.2.
2. Ensure you have enough notes in your account to trigger the pagination/infinite scroll behavior (at least more than one "page" of items returned by the API).
3. Open the browser console (F12 or Inspect -> Console).
4. Navigate to the `Notes` page via the sidebar `/notes`.
5. Scroll down to trigger the infinite scroll loader to fetch the next page of notes.
6. Observe the Svelte runtime error `Uncaught Error: https://svelte.dev/e/each_key_duplicate` in the browser dev tools console, and notice that the pagination fails to append the new list of notes to the UI.
### Logs & Screenshots
**Browser Console Error(s) (One may or may not be more helpful than the other for debugging/diagnosis of the issue)**
First capture (Docker build):
```js
Uncaught Error: https://svelte.dev/e/each_key_duplicate
mi errors.js:146
o each.js:349
Nr runtime.js:258
Ye runtime.js:460
Wt batch.js:350
Gt batch.js:247
flush batch.js:417
ensure batch.js:579
Fn utils.js:47
Gn task.js:10
Se task.js:28
Se task.js:19
ensure batch.js:573
ct sources.js:193
le sources.js:171
Me Notes.svelte:223
le Notes.svelte:178
ca Notes.svelte:185
setTimeout handler*ca/< Notes.svelte:183
Ce runtime.js:749
effect effects.js:329
Nr runtime.js:258
Ye runtime.js:460
Wt batch.js:350
Gt batch.js:247
Gt batch.js:314
Gt batch.js:314
Gt batch.js:314
flush batch.js:417
ensure batch.js:579
Fn utils.js:47
Gn task.js:10
Se task.js:28
Se task.js:19
ensure batch.js:573
ct sources.js:193
le sources.js:171
set legacy-client.js:110
<anonymous> legacy-client.js:149
$set legacy-client.js:159
F client.js:1824
Sn client.js:2666
Sn client.js:2557
Cn client.js:382
async* e43bb9cc-2342-4542-ab8e-eb23c5d0982d:137
promise callback* e43bb9cc-2342-4542-ab8e-eb23c5d0982d:136
errors.js:146:9
mi errors.js:146
o each.js:349
Nr runtime.js:258
Ye runtime.js:460
Wt batch.js:350
Gt batch.js:247
flush batch.js:417
ensure batch.js:579
Fn utils.js:47
Gn task.js:10
Se task.js:28
(Async: VoidFunction)
Se task.js:19
ensure batch.js:573
ct sources.js:193
le sources.js:171
Me Notes.svelte:223
InterpretGeneratorResume self-hosted:1312
AsyncFunctionNext self-hosted:780
(Async: async)
le Notes.svelte:178
ca Notes.svelte:185
(Async: setTimeout handler)
ca Notes.svelte:183
Ce runtime.js:749
effect effects.js:329
Nr runtime.js:258
Ye runtime.js:460
Wt batch.js:350
Gt batch.js:247
Gt batch.js:314
Gt batch.js:314
Gt batch.js:314
flush batch.js:417
ensure batch.js:579
Fn utils.js:47
Gn task.js:10
Se task.js:28
(Async: VoidFunction)
Se task.js:19
ensure batch.js:573
ct sources.js:193
le sources.js:171
set legacy-client.js:110
<anonymous> legacy-client.js:149
$set legacy-client.js:159
F client.js:1824
InterpretGeneratorResume self-hosted:1312
AsyncFunctionNext self-hosted:780
(Async: async)
Sn client.js:2666
InterpretGeneratorResume self-hosted:1312
AsyncFunctionNext self-hosted:780
(Async: async)
Sn client.js:2557
Cn client.js:382
InterpretGeneratorResume self-hosted:1312
AsyncFunctionNext self-hosted:780
(Async: async)
<anonymous> e43bb9cc-2342-4542-ab8e-eb23c5d0982d:137
(Async: promise callback)
<anonymous> e43bb9cc-2342-4542-ab8e-eb23c5d0982d:136
```
Second capture (Local VSCode build):
```js
Uncaught Svelte error: each_key_duplicate
Keyed each block has duplicate key `e4ea3e23-67c1-489a-a7e7-49cc572ca388` at indexes 0 and 15
https://svelte.dev/e/each_key_duplicate
in <unknown>
in Notes.svelte
in +page.svelte
in +layout.svelte
in +layout.svelte
in +layout.svelte
in root.svelte
in undefined
each_key_duplicate errors.js:138
validate_each_keys each.js:760
effect2 each.js:346
update_reaction runtime.js:258
update_effect runtime.js:460
traverse_fn batch.js:350
process_fn batch.js:247
flush batch.js:417
ensure batch.js:579
run_all utils.js:47
run_micro_tasks task.js:10
queue_micro_task task.js:28
queue_micro_task task.js:19
ensure batch.js:573
internal_set sources.js:193
set sources.js:171
getItemsPage Notes.svelte:301
init Notes.svelte:178
Notes Notes.svelte:185
setTimeout handler*Notes/< Notes.svelte:183
untrack runtime.js:749
effect effects.js:329
update_reaction runtime.js:258
update_effect runtime.js:460
traverse_fn batch.js:350
process_fn batch.js:247
process_fn batch.js:314
process_fn batch.js:314
process_fn batch.js:314
flush batch.js:417
ensure batch.js:579
run_all utils.js:47
run_micro_tasks task.js:10
queue_micro_task task.js:28
queue_micro_task task.js:19
ensure batch.js:573
internal_set sources.js:193
set sources.js:171
set legacy-client.js:110
<anonymous> legacy-client.js:149
$set legacy-client.js:159
navigate client.js:1824
_start_router client.js:2666
_start_router client.js:2557
start client.js:382
async* (index):126
promise callback* (index):125
errors.js:138:17
each_key_duplicate errors.js:138
validate_each_keys each.js:760
effect2 each.js:346
update_reaction runtime.js:258
update_effect runtime.js:460
traverse_fn batch.js:350
process_fn batch.js:247
flush batch.js:417
ensure batch.js:579
run_all utils.js:47
run_micro_tasks task.js:10
queue_micro_task task.js:28
(Async: VoidFunction)
queue_micro_task task.js:19
ensure batch.js:573
internal_set sources.js:193
set sources.js:171
getItemsPage Notes.svelte:301
InterpretGeneratorResume self-hosted:1312
AsyncFunctionNext self-hosted:780
(Async: async)
init Notes.svelte:178
Notes Notes.svelte:185
(Async: setTimeout handler)
Notes Notes.svelte:183
untrack runtime.js:749
effect effects.js:329
update_reaction runtime.js:258
update_effect runtime.js:460
traverse_fn batch.js:350
process_fn batch.js:247
process_fn batch.js:314
process_fn batch.js:314
process_fn batch.js:314
flush batch.js:417
ensure batch.js:579
run_all utils.js:47
run_micro_tasks task.js:10
queue_micro_task task.js:28
(Async: VoidFunction)
queue_micro_task task.js:19
ensure batch.js:573
internal_set sources.js:193
set sources.js:171
set legacy-client.js:110
<anonymous> legacy-client.js:149
$set legacy-client.js:159
navigate client.js:1824
InterpretGeneratorResume self-hosted:1312
AsyncFunctionNext self-hosted:780
(Async: async)
_start_router client.js:2666
InterpretGeneratorResume self-hosted:1312
AsyncFunctionNext self-hosted:780
(Async: async)
_start_router client.js:2557
start client.js:382
InterpretGeneratorResume self-hosted:1312
AsyncFunctionNext self-hosted:780
(Async: async)
<anonymous> (index):126
(Async: promise callback)
<anonymous> (index):125
```
### Screenshot
First capture (Docker build):
<img width="2560" height="720" alt="Image" src="https://github.com/user-attachments/assets/69adf02a-a6d9-4def-b3ee-98fde069392a" />
Second capture (Local VSCode build):
<img width="2557" height="638" alt="Image" src="https://github.com/user-attachments/assets/96fd35ac-fdad-4687-aab0-e8381bd51248" />
### Additional Information
This issue is caused by the Svelte keyed `#each` blocks inside `src/lib/components/notes/Notes.svelte`. Specifically, either lines 477 (`{#each notesList as note, idx (note.id)}`) or 563 (`{#each notesList as note, idx (note.id)}`) throw a duplicate key error because the `note.id` is not strictly unique among the rendered `items` array. When `getItemsPage()` appends the newly fetched `pageItems` arrays to `items` (`items = [...items, ...pageItems];`), overlapping or duplicate items bypass any deduplication logic and crash the `each` block since the identifier `(note.id)` appears more than once. Filtering out duplicates prior to setting the `items` state, or utilizing unique synthetic keys for rendering, would resolve this issue.
<!-- gh-comment-id:4102201151 -->
@silentoplayz commented on GitHub (Mar 21, 2026):
Should be solved with https://github.com/open-webui/open-webui/commit/58e78e8946fb3644107489fe8e01b17709302b2f#diff-4bb6dfc98d2cc12b6ce0fa3d5d6d4309736a92eec0cf7188b90572904b523412R224. Closing this issue out!
Blocking a user prevents them from interacting with repositories, such as opening or commenting on pull requests or issues. Learn more about blocking a user.
Originally created by @silentoplayz on GitHub (Mar 16, 2026).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/22740
Check Existing Issues
Installation Method
Docker
Open WebUI Version
v0.8.10
Ollama Version (if applicable)
v0.18.0
Operating System
Ubuntu 24.04.4 LTS
Browser (if applicable)
Mozilla Firefox Snap for Ubuntu v148.0.2 (64-bit) / Google Chrome v146.0.7680.80 (Official Build) (64-bit)
Confirmation
README.md.Expected Behavior
When visiting the Notes page from the sidebar and scrolling through the list of existing notes, the infinite scroller should fetch and append the older notes sequentially without throwing errors or halting the rendering sequence.
Actual Behavior
Scrolling through the list of notes triggers the Svelte error
Uncaught Error: https://svelte.dev/e/each_key_duplicate, halting the rendering of the items. Any notes not initially displayed to the user fail to load as a result of the UI crashing.Steps to Reproduce
v0.8.10version on Ubuntu 24.04.4 LTS using Firefox v148.0.2.Notespage via the sidebar/notes.Uncaught Error: https://svelte.dev/e/each_key_duplicatein the browser dev tools console, and notice that the pagination fails to append the new list of notes to the UI.Logs & Screenshots
Browser Console Error(s) (One may or may not be more helpful than the other for debugging/diagnosis of the issue)
First capture (Docker build):
Second capture (Local VSCode build):
Screenshot
First capture (Docker build):
Second capture (Local VSCode build):
Additional Information
This issue is caused by the Svelte keyed
#eachblocks insidesrc/lib/components/notes/Notes.svelte. Specifically, either lines 477 ({#each notesList as note, idx (note.id)}) or 563 ({#each notesList as note, idx (note.id)}) throw a duplicate key error because thenote.idis not strictly unique among the rendereditemsarray. WhengetItemsPage()appends the newly fetchedpageItemsarrays toitems(items = [...items, ...pageItems];), overlapping or duplicate items bypass any deduplication logic and crash theeachblock since the identifier(note.id)appears more than once. Filtering out duplicates prior to setting theitemsstate, or utilizing unique synthetic keys for rendering, would resolve this issue.@silentoplayz commented on GitHub (Mar 21, 2026):
Should be solved with https://github.com/open-webui/open-webui/commit/58e78e8946fb3644107489fe8e01b17709302b2f#diff-4bb6dfc98d2cc12b6ce0fa3d5d6d4309736a92eec0cf7188b90572904b523412R224. Closing this issue out!