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[GH-ISSUE #6075] llama3.1:8b gives empty response first, then hallucinates when prompted with system role #29556

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opened 2026-04-22 08:32:30 -05:00 by GiteaMirror · 2 comments
GiteaMirror commented 2026-04-22 08:32:30 -05:00
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Originally created by @rb81 on GitHub (Jul 30, 2024).
Original GitHub issue: https://github.com/ollama/ollama/issues/6075

What is the issue?

I've suddenly started getting weird behavior from llama3.1:8b when prompting it with the system role. user works as expected. system was working a few days ago, so I don't know if this is related to an issue with a recent model or Ollama update. Anybody else facing similar issues?

OS

No response

GPU

No response

CPU

No response

Ollama version

0.3.0

Originally created by @rb81 on GitHub (Jul 30, 2024). Original GitHub issue: https://github.com/ollama/ollama/issues/6075 ### What is the issue? I've suddenly started getting weird behavior from `llama3.1:8b` when prompting it with the `system` role. `user` works as expected. `system` was working a few days ago, so I don't know if this is related to an issue with a recent model or Ollama update. Anybody else facing similar issues? ### OS _No response_ ### GPU _No response_ ### CPU _No response_ ### Ollama version 0.3.0
GiteaMirror added the bug label 2026-04-22 08:32:30 -05:00
GiteaMirror commented 2026-04-22 08:32:32 -05:00
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@rick-github commented on GitHub (Jul 30, 2024):

An example of a failed prompt and server logs would help with diagnosis.

<!-- gh-comment-id:2258520706 --> @rick-github commented on GitHub (Jul 30, 2024): An example of a failed prompt and server logs would help with diagnosis.
GiteaMirror commented 2026-04-22 08:32:32 -05:00
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@rb81 commented on GitHub (Jul 30, 2024):

It seems this issue was related to a bug in my application where an invalid role was provided following the system role. Funny how this worked before (hence why I didn't pick up on it).

<!-- gh-comment-id:2258546912 --> @rb81 commented on GitHub (Jul 30, 2024): It seems this issue was related to a bug in my application where an invalid role was provided following the system role. Funny how this worked before (hence why I didn't pick up on it).
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Reference: github-starred/ollama#29556
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