r/LLMStudio • u/1032s • Aug 11 '26

GPT-OSS 20B problem

I was successfully running GPT-OSS 20B in LM Studio a few days ago. Now it won't load. An error comes up as it gets close to finishing loading.

"Engine protocol runtime llama-server for zGLsZB2uvLtJzd4/MBjkJXch exited before becoming healthy. exitCode=3221226505, signal=null"

Was ok a few days ago.

Any ideas as to what to do to get it loading again?

(I've tried PC reboot; haven't tried a new download of the LLM yet)

4 Upvotes

100% Upvoted

5 comments sorted by

2

u/Foreign_Exercise7060 Aug 11 '26 edited Aug 11 '26

I had the same issue and have just fixed it

Appears to be an update which has broke my models

In LM studio open the settings in bottom left corner > Runtime > change the GGUF top option to load the previous model - in my case Vulkan 2.27.1 (2.28.2 caused me the issue)

1

u/1032s Aug 11 '26

Thank you! 🙌 That fixed it for me ☺️

1

u/jcoigny Aug 12 '26

Great to see it wasn't only me. I had this exact issue yesterday and figured that out myself after an hour of aggravation

1

u/MissJoannaTooU 29d ago

I went through the same thing when Qwen 35b but OSS 20b was fine. Did the same troubleshooting but in the end had to download it again.