GPT 5 API not responsive. The log shows that it is connecting and reasoning but never actually types back…

We have a web app and it utilizes GPT 5 but for some reason when it hits the api, it just doesn’t respond. The logs show it hitting the API, its proposed action but it just won’t act. I noticed this only happens with 5, 5 mini looked to be working on. Anyone have any thoughts?

Just finished a three hour session with gpt-5-mini. Working fine - on our web and desktop app.

Can you be more specific?