Zotero 7: Cannot collapse items after opening notes

Shusan

When I open a note, the corrosponding item expands. However, I cannot collapse the item back. Could you please provide instructions on how to collapse the items once they have been expanded?

Before opening the Note1:
https://s3.amazonaws.com/zotero.org/images/forums/u8609714/3mjeti07hyfkpbgtulh4.png
After opening the Note1/Note2:
https://s3.amazonaws.com/zotero.org/images/forums/u8609714/2th1yh09bkdkqzoddz8j.png

https://s3.amazonaws.com/zotero.org/images/forums/u8609714/o3ha9gdz4s5d9wqpoizl.png
https://s3.amazonaws.com/zotero.org/images/forums/u8609714/l4svzf4mj427rpsadawk.png

dstillman

Restart in Troubleshooting Mode (Help → "Restart in Troubleshooting Mode…”), which temporarily disables all plugins. You appear to be missing the little triangle that lets you expand/collapse items, I would guess because of some plugin you have installed. (Left/right arrow on the keyboard probably still works, though.)