Furniture Library Editor not working

[SkippyTheWonderLizard]

The Furniture Library Editor does not allow me to modify an item in a library. The "modified" option is greyed out on the pop-up menu.

It also will not show that I have selected an item in a library — i.e., highlight the item — until I resized the window.

When I try to open a library when one is already open, nothing happens, until I try to quit the FLE, whereupon it asks me whether I want to save the one that is already open.


Running mac osx 10.15.7.