ChatGPT can't load conversation

Environment

  • Surface: Web
  • Browser or app version: Attempted in Firefox 158.0.1, normal window and private window (no addons), and Chrome 156.0.8078.48
  • Affected feature and model, if relevant: Not relevant

Bug

What happened, and what did you expect?
I am simply trying to open previous chats, I just expected it to open them as normal. But it continuously fails and says: “Could not load this ChatGPT conversation”, gives a “retry” button. Retrying, over and over (via button or refresh) makes no difference.

Reproduction

Steps or a minimal example prompt:
Self explanatory from the above. Open ChatGPT website, click on chat title in sidebar, get “Could not load this ChatGPT conversation”.

Diagnostics

Exact error or screenshot:

When it happened (with timezone) and how often:
Circa 19:30, UTC (Portugal/Lisbon time). Every time I have tried to open a conversation since. So constantly.