Plexamp 4.7.4 on Mac crashes when add OpenAI API Key

Running MacOS 13.4 on a Mac Studio Plexamp 4.7.4. When I enter in the OpenAIU API key and press either enter or back the application crashes.

I assume that I user the same key for all of my Plexamp players so it is the same as the one that works on my iPhone.

Weird, works fine over here. Anyone else?