I just checked, and I can confirm that it works in the composer so it is only stuck on generating in the post menu.
Yes!
May I PM you the log file? (Don’t want my site floating around here just yet)
Furthermore, I have just noticed a new problem. When using the custom prompt on the selected in the composer, it automatically uses the Discourse instance’s default language (Polish) instead of the language I have set in my preferences (English). As observed in this screenshot:
(My custom prompt was “Turn this into a poem.”)
