File Uploads Not Passed to Custom Engine Agent in Microsoft 365 Copilot Chat | Microsoft Community Hub (opens in new tab)

Hi all,I'm working with a custom agent built in Copilot Studio (full authoring experience — topics, knowledge sources, agent flows) published to both the Microsoft Teams channel and the Microsoft 365 channel.I've noticed a significant UX discrepancy when it comes to file and image attachments, and I want to confirm my understanding and check whether any workaround or roadmap item exists.What works:✅ File/image uploads work as expected in the Copilot Studio test pane✅ File/image uploads work i...