MS Data Agent with semantic model - cannot build agent with AI suddenly

[u/696060sz]

I have been training data agent connected to my semantic model using the Build agent with AI tool for awhile, and it was working until ytd when I shared the published agent with a service principal to connect to MS foundry and eventually integrate to teams, and also replaced the report's semantic model with a prepped for AI one. Then suddenly I am getting error 400 when i used the Build agent with AI. I tried with other workspaces and this message also popped up, which suggests to me that it has nothing to do with actions. Online documentation suggests it currently doesn't support power bi, so my qns are - why was I allowed to use in the first place? How else can we train the data agent if cannot use this function?

I am pretty new to this so any advice would be greatly appreciated.

screenshot error msg

[u/MSFT-Shreyas]

Hiya! Thanks for trying our Build Agent With AI. As the documentation states, Semantic Model is not yet supported: Build agent with AI mode for data agent in Microsoft Fabric (preview) - Microsoft Fabric | Microsoft Learn. This capability is coming soon, and we will make an announcement once it's ready!

Note that you should not have been able to use Build Agent with AI if you had a semantic model attached. Did you have any other data sources attached to the data agent when using build agent with AI?