Codex Desktop threads stuck in “Thinking” and cannot be stopped unless background process is force-killed #12852
Description
What version of the Codex App are you using (From “About Codex” dialog)?
26.224.1209
What subscription do you have?
Business
What platform is your computer?
Darwin 24.5.0 arm64 arm
What issue are you seeing?
I encountered an issue where two existing threads were stuck in a permanent “Thinking” state.
Restarting the application did not fix the issue. Clicking the “Stop” button had no effect. Trying to insert new prompts into the same threads also resulted in infinite “Thinking”.
But creating a completely new thread worked normally. The model responded without any issues.
The issue was only resolved after force-killing the background Codex process using:
ps aux | grep codex
kill -9 <PID>
After force-killing the process:
• The “Stop” button disappeared
• The input arrow became available again
• New prompts could be added to the affected threads
• The model responded normally
• The original stuck message still visually shows “Thinking” indefinitely
What steps can reproduce the bug?
Session id: 019c9747-e085-72f3-9168-878dc58fe99b & 019c9785-e8b9-77b3-821a-834bb88e139d
What is the expected behavior?
No response
Additional information
No response