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[GH-ISSUE #2731] Screen Flashing on Back Navigation since 2023.7.1 #14339

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opened 2026-04-15 00:13:36 -05:00 by GiteaMirror · 10 comments
GiteaMirror commented 2026-04-15 00:13:36 -05:00
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Originally created by @quexten on GitHub (Aug 29, 2023).
Original GitHub issue: https://github.com/bitwarden/android/issues/2731

Steps To Reproduce

  1. Go to "My vault"
  2. Click on a Login
  3. Navigate back

Expected Result

The screen should not flash on back navigation.

Actual Result

The screen flashes.

Screenshots or Videos

Screencast from 2023-08-29 11-56-50.webm

Additional Context

I triaged it down to the PR https://github.com/bitwarden/mobile/pull/2604. As a side-effect of the PR, or more specifically, this part: https://github.com/bitwarden/mobile/blob/e9bfeb2a9e8463ebd1544386acdd0ffd4c20bd7c/src/App/Pages/Vault/GroupingsPage/GroupingsPageViewModel.cs#L387-L392
the screen begins to flash on back navigation. Removing the Device.BeginInvokeOnMainThread fixes the bug, but also defeats the point of the PR.

Operating System

Android

Operating System Version

Android 13

Device

Google Emulator, Mi9T Pro

Build Version

2023.7.1

Beta

  • Using a pre-release version of the application.
Originally created by @quexten on GitHub (Aug 29, 2023). Original GitHub issue: https://github.com/bitwarden/android/issues/2731 ### Steps To Reproduce 1. Go to "My vault" 2. Click on a Login 3. Navigate back ### Expected Result The screen should not flash on back navigation. ### Actual Result The screen flashes. ### Screenshots or Videos [Screencast from 2023-08-29 11-56-50.webm](https://github.com/bitwarden/mobile/assets/11866552/54ecdd48-af80-47a4-8c67-2c5f59daf442) ### Additional Context I triaged it down to the PR https://github.com/bitwarden/mobile/pull/2604. As a side-effect of the PR, or more specifically, this part: https://github.com/bitwarden/mobile/blob/e9bfeb2a9e8463ebd1544386acdd0ffd4c20bd7c/src/App/Pages/Vault/GroupingsPage/GroupingsPageViewModel.cs#L387-L392 the screen begins to flash on back navigation. Removing the `Device.BeginInvokeOnMainThread` fixes the bug, but also defeats the point of the PR. ### Operating System Android ### Operating System Version Android 13 ### Device Google Emulator, Mi9T Pro ### Build Version 2023.7.1 ### Beta - [ ] Using a pre-release version of the application.
GiteaMirror added the bug label 2026-04-15 00:13:36 -05:00
GiteaMirror commented 2026-04-15 00:13:37 -05:00
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@Krychaz commented on GitHub (Aug 29, 2023):

Hi there,

I am unable to reproduce this issue, it has been escalated for further investigation. If you have more information that can help us, please add it below.

Thanks!

<!-- gh-comment-id:1697189416 --> @Krychaz commented on GitHub (Aug 29, 2023): Hi there, I am unable to reproduce this issue, it has been escalated for further investigation. If you have more information that can help us, please add it below. Thanks!
GiteaMirror commented 2026-04-15 00:13:37 -05:00
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@quexten commented on GitHub (Aug 29, 2023):

@Krychaz do note that while I was technically not using a pre-release version, the latest google-play release is still on 2023.07 which does not have the bug. On 2023.7.1 and 2023.8.0 (which are marked as releases here on GitHub, but are not yet in google-play) I was able to reproduce the bug consistently on 2 different Android phones and the Android emulator. It seems the "flashing" (i.e the list briefly disappearing) is shorter on faster devices (but never completely gone).

Hope that helps to reproduce it.

<!-- gh-comment-id:1697226064 --> @quexten commented on GitHub (Aug 29, 2023): @Krychaz do note that while I was technically not using a pre-release version, the latest google-play release is still on 2023.07 *which does not have the bug*. On 2023.7.1 and 2023.8.0 (which are marked as releases here on GitHub, but are not yet in google-play) I was able to reproduce the bug consistently on 2 different Android phones and the Android emulator. It seems the "flashing" (i.e the list briefly disappearing) is shorter on faster devices (but never completely gone). Hope that helps to reproduce it.
GiteaMirror commented 2026-04-15 00:13:38 -05:00
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@quexten commented on GitHub (Aug 29, 2023):

Just tested on iOS on an iPad Pro 2020. On 2023.7.0 the bug does not happen. On the current version from the app store - 2023.8.0 it does happen, although it is much less noticeable. On an older android phone the "flashing" takes around a second, on the ipad it was barely visible:

https://github.com/bitwarden/mobile/assets/11866552/176d30a3-539a-4c76-b072-abceeb79e441

<!-- gh-comment-id:1697255193 --> @quexten commented on GitHub (Aug 29, 2023): Just tested on iOS on an iPad Pro 2020. On 2023.7.0 the bug does not happen. On the current version from the app store - 2023.8.0 it does happen, although it is much less noticeable. On an older android phone the "flashing" takes around a second, on the ipad it was barely visible: https://github.com/bitwarden/mobile/assets/11866552/176d30a3-539a-4c76-b072-abceeb79e441
GiteaMirror commented 2026-04-15 00:13:39 -05:00
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@Doorstop2 commented on GitHub (Sep 15, 2023):

I'm on the pixel 7 and this is happening on the latest version

<!-- gh-comment-id:1721486818 --> @Doorstop2 commented on GitHub (Sep 15, 2023): I'm on the pixel 7 and this is happening on the latest version
GiteaMirror commented 2026-04-15 00:13:39 -05:00
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@BabyOilJohnson commented on GitHub (Sep 19, 2023):

Same here on Samsung A30(A11)
v2023.8.0

https://github.com/bitwarden/mobile/assets/101601874/959ef45b-303a-4efa-973e-ef9bab6ef5fa

<!-- gh-comment-id:1724807292 --> @BabyOilJohnson commented on GitHub (Sep 19, 2023): Same here on Samsung A30(A11) v2023.8.0 https://github.com/bitwarden/mobile/assets/101601874/959ef45b-303a-4efa-973e-ef9bab6ef5fa
GiteaMirror commented 2026-04-15 00:13:41 -05:00
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@vinnyperella commented on GitHub (Sep 25, 2023):

This happens every time I open the app from the PIN unlock screen. It started occurring after the version 2023.8.0 update I was hoping it would be fixed with 2023.9.0 but I'm on 2023.9.1 and it is still an issue. I also just tested what the commenter showed above and it happens for me too going to any tab and then back to vault causes the flicker.

I'm using a Pixel XL (marlin) LineageOS 18.1+MicroG (Android 11).

<!-- gh-comment-id:1733718815 --> @vinnyperella commented on GitHub (Sep 25, 2023): This happens every time I open the app from the PIN unlock screen. It started occurring after the version 2023.8.0 update I was hoping it would be fixed with 2023.9.0 but I'm on 2023.9.1 and it is still an issue. I also just tested what the commenter showed above and it happens for me too going to any tab and then back to vault causes the flicker. I'm using a Pixel XL (marlin) LineageOS 18.1+MicroG (Android 11).
GiteaMirror commented 2026-04-15 00:13:41 -05:00
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@sarvesheb commented on GitHub (Dec 10, 2023):

Issue still exists on v2023.12.0

<!-- gh-comment-id:1848852037 --> @sarvesheb commented on GitHub (Dec 10, 2023): Issue still exists on v2023.12.0
GiteaMirror commented 2026-04-15 00:13:42 -05:00
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@vinnyperella commented on GitHub (Mar 12, 2024):

I believe this is now fixed I'm on version 2024.2.1 and I'm not seeing it anymore.

<!-- gh-comment-id:1992273082 --> @vinnyperella commented on GitHub (Mar 12, 2024): I believe this is now fixed I'm on version 2024.2.1 and I'm not seeing it anymore.
GiteaMirror commented 2026-04-15 00:13:42 -05:00
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@quexten commented on GitHub (Mar 12, 2024):

Still happening on iOS, even if less noticeable due to being faster on the device. However, given the native re-write of the apps, I also don't believe this is worth further investigating.

<!-- gh-comment-id:1992497614 --> @quexten commented on GitHub (Mar 12, 2024): Still happening on iOS, even if less noticeable due to being faster on the device. However, given the native re-write of the apps, I also don't believe this is worth further investigating.
GiteaMirror commented 2026-04-15 00:13:43 -05:00
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@quexten commented on GitHub (Jun 11, 2024):

Closing. The native apps make this irrelevant.

<!-- gh-comment-id:2161471442 --> @quexten commented on GitHub (Jun 11, 2024): Closing. The native apps make this irrelevant.
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Reference: github-starred/android#14339