Materials tab view issue

Hello ive recently started getting this split on the materials tabs of some objects. Objects that have a tab looking like this are somewhat finicky when it comes to selecting materials (the materials work fine) and secondly any material existing here i wont be able to add to other objects from the ‘browse material to be linked’ button on a ‘normal’ looking materials tab (the one on the right)

I recently installed archipack and im assuming thats the cause of this because objects created through that addon have a tab looking exactly like this with some materials appearing as an outline in the tab

im so confused as to what exactly this problem is so sry i cant explain it…