Reported by @gritty quartz
Build a Custom GPT in one non-business ChatGPT Pro account. Enable the data analysis / code interpreter. Ask it to do something requiring the code interpreter. Add one or multiple knowledge files (xlsx, pdf, txt - all have reproduced). Try it out on the custom GPT creator's account, and then on any other non-business or business ChatGPT Pro account. Ensure the prompt will require the code interpreter be used.
The code interpreter runs without error in the custom GPT.
The code interpreter runs without error in the creator account, but FAILS with a variety of error codes on any other other account. https://community.openai.com/t/custom-gpt-code-interpreter-doesnt-work-on-non-creator-accounts-when-knowledge-files-are-added/1378049
Tried on multiple browsers, but primarily using Chrome