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Codex app begins freezing in chat with many image generations #19936
Description
What version of the Codex App are you using (From “About Codex” dialog)?
26.426.12240
What subscription do you have?
Pro
What platform is your computer?
Win11
What issue are you seeing?
Codex begins freezing upon chats with multiple image generations. I am working on a project and using the /image generation skill a lot. Once the chat reaches around 10-20+ images, the chat consistently freezes for about 30s - 1 minute upon sending a new message, or receiving a message from codex. My solution has been to archive the chats after this becomes too much of an issue and begin a new one.
What steps can reproduce the bug?
Chat with around 10+ generated image assets, send a new message or receive a new message.
What is the expected behavior?
30s - 1 minute freeze upon chat with many images created via /image generation skill.
Additional information
No response
Activity
github-actions commentedon Apr 28, 2026
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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Timothy-Gaines commentedon May 10, 2026
I’m seeing the same/similar issue.
Feedback issue ID: 7618929a-0c47-4d15-b38e-8005d05bae80
On Windows Codex Desktop, after a chat generates an image, later messages in that same chat make the app freeze or lag for several seconds. CPU spikes, the UI becomes temporarily unresponsive, and it can show reconnect/loading behavior. Chats without generated images seem fine.
BrotherHawkins commentedon Jun 6, 2026
Same issue. It reaches a point where that session is completely unusable. Any interaction freezes the app and times out reconnecting.