[Bug]: Disconnected from T3 Server Reconnecting in 1s... Attempt 1/8 on every single message

[lighthold]

Before submitting

• I searched existing issues and did not find a duplicate.
• I included enough detail to reproduce or investigate the problem.

Area

apps/server

Steps to reproduce

Starte the App on Mac and chat with GPT5.5 in a project of yours.

Expected behavior

No disconnects, or at least after reconnect show what GPT is really doing.

Actual behavior

No disconnect at all, or after reconnect show me whats going on. I am on the current nightly but also had this on the 2 nightlys before. Since a couple of days using the GPT 5.5 model I always get "Disconnected from T3 Server Reconnecting in 1s... Attempt 1/8". With every single request.
The app then reconnects and shows me the working timer but does not update the UI anymore. Timer will also never end. I then need to open the Codex App and see how my task is going on or see the finished message.

Impact

Major degradation or frequent failure

Version or commit

0.0.22-nightly.20260427.135

Environment

macOS 26.4.1

Logs or stack traces

Screenshots, recordings, or supporting files

Bildschirmfoto 2026-04-27 um 07.55.09.png

Workaround

No response

[Zimtente]

First it was the white screen where sessions would just die. now this. back to the CLI again until its fixed. or maybe just not coming back again. annoying.

[Rhiz3K]

Same behaviour every 5-10 seconds it was OK like 2 weeks ago but when you have more and more messages in history it is worse. Also noticed when you have some really long conversations it is even bigger problem and they are loading after multiple refreshes and ater clicking to different conversations.

Connected via tailscale to VPS.

[DeBelserArne]

I'm encounterign the same issue, t3code on windows, using Opencode Go