Hi everyone! 

I’m running into an authentication error when trying to call a Databricks foundational model endpoint inside a pandas UDF. I’m using the ChatDatabricks wrapper to make completions, and this setup was working properly until last week (image attached).
Has something changed in how pandas UDF worker nodes access endpoints or handle authentication? What is the correct way to authenticate and make these calls from within workers?
Any advice, recommended practices, or documentation would be greatly appreciated!

Thanks!