Sadly their whole frontend seems to be built without QC and mostly blindly assuming a happy path.
For the claude.ai UI, I've never had a single deep research properly transition (and I've done probably 50 or so) to its finished state. I just know to refresh the page after ~10mins to make the report show up.
For the claude.ai UI, I've never had a single deep research properly transition (and I've done probably 50 or so) to its finished state. I just know to refresh the page after ~10mins to make the report show up.