The issue appears to be linked to the quantity of subfolders with the precise number being unknown. To reproduce:

Create a folder structure like so:

My Inventory

-> Clothes

--> Boots

--> Tops

--> Jewelry

--> Pants

--> ...

Each subfolder will have a varying complexity of items in them, such as additional subfolders or either attachments or BOM.

Detaching the "Clothes" folder will remove every possible entry from the "Wearing" tab, most notably also items from outside the "Clothes" folder. Expected behaviour would be that it only removes items from said folder, not unrelated ones.

A possible workaround is to multi-select all subfolders and detach them that way. This results in the expected behavior.

See attached screenshots for a demonstration of the issue.

Step 1:

Select top folder and Take off folder items

Step 2:

Notice the wearing tab clearing out almost entirely with the inventory not updating.

Step 3:

Detaching any one item from the worn inventory tab will result in the view shown here. Note how even unrelated folders have been detached such as my Main Body folder.