Already reported in so many threads now, e.g. in this:
https://www.esoui.com/forums/showthread.php?t=8811
Wait for ZOs to patch the stuff and afterwards it should be gone.
It's basically all addons having to do with inventory, so it could be Inventory grid View, Grid List, any Sort addon, AdvancedFilters, FCOItemSaver, Dustman, and many many others.
Each addon which calls Inventory update can be the problem, or some of them together.