Hi @Sol_Kong
Thanks for the detailed report and the clear steps to reproduce. This is a known issue with drag-and-drop from the Explorer sidebar into Chat/Composer, and our team is actively investigating.
The fact that Windows File Explorer drag-and-drop still works is a really useful diagnostic detail — it points to a specific internal drag-and-drop code path.
In the meantime, here are a couple of workarounds:
-
Use
@in the chat input to search for and add files as context -
Right-click a file in the Explorer sidebar and select Add to Chat (if available)
You may also find this related thread helpful: Drag and Drop Broken
We’ll keep working on a fix. Let me know if anything else comes up!