Codex/ChatGPT Windows app keeps freezing and showing “Not Responding” while tasks continue in the background

I’m having a persistent issue with the ChatGPT/Codex Windows app.

The app repeatedly becomes unresponsive and Windows shows **“Not Responding.”** Sometimes the chat input appears for a few seconds, then disappears before I can type anything. If I manage to send a message, the app may freeze while the task is processing. The strange part is that the task often continues running in the background, and the response appears once processing is finished, but the UI freezes again shortly afterward.

In some cases, the app freezes immediately on the startup/logo screen before the interface fully loads.

My workflow depends on Codex tasks connected to GitHub repositories and VPS/SSH environments, so switching to a local CLI or opening the project in VS Code is not an equivalent replacement for me.

Things I have already tried:

* Restarting the app and Windows * Using the Windows **Repair** option * Clearing the app cache, Code Cache, GPUCache, shader cache, etc. * Testing both integrated and dedicated GPU preferences in Windows Graphics settings * Disabling hardware-accelerated GPU scheduling * Trying different graphics settings * Reinstalling the app * Checking RAM and CPU usage * Testing without VPN or other network filters

Clearing the cache temporarily fixed the problem, but only for a short time. The freezing returned afterward.

I’m also wondering whether this could be caused by a very large or long-running Codex task/thread. Has anyone experienced the same issue, especially with large conversations, GitHub-connected tasks, or VPS/SSH workflows?

Any reliable workaround or fix would be appreciated.