Publishing bot to Microsoft Teams
We have been experiencing the same.
For us it's with a bot built to retrieve HR policy documentation that is saved in a Sharepoint site library. Generative Orchestration IS currently enabled and initially we tried with manual authentication.
While in the test environment the question can get asked and the bot is able to comprehend the topic and retrieve the relevant information from the knowledge source. Once published and added into the marketplace under "Built for your org" the same user that built the bot can add it and ask the same prompt and get the expected results. I can be side by side with the same permissions, ask the same exact question and get a different result. Sometimes it wont even be able to provide a relevant answer and will give a generic response.
Additionally we tested adding a video via Stream to the same Sharepoint library to see how/if the bot would find the video given the prompt and post it in chat for the user to open. Again, this works for the most part in the testing environment but when trying the published version in Teams we get mixed results. We set a specific answer for a specific prompt to test that logic was working and it provides the response but no link or video. I can ask the exact same question a 2nd time and just get a response that says "Did that answer your question?"
As of right now I'm chalking it up to being the generative orchestration mode and/or the authentication portion no being sufficient for Sharepoint when it is trying to be referenced. The difficult part so far has been that there has been no error code or log to at least point me in the right direction. Also the fact that republishing the bot in Copilot Studio doesn't necessarily update the published app within Teams automatically. It can but there is no way to know for sure if the changes you made most recently are in fact in the version of the app you want to test.