GridView problem?
 

I've disabled every other addon but GridView but I'm not seeing the icon nor is inventory displayed in grid form. I'm coming back to the game after a long break and I'm updating addons, so I removed the old Inventory Grid View (which appeared to have at least sort of worked) but if this is the only replacement? :(

if all the necessary libraries are installed, then most likely you just need to click on the switch button. but this addon has not been updated for a long time, I advise you to use the version without LibStub library request from Baertram download here or GridList. I recommend the second option

Yeah, please use the GridList addon as i is updated and supported.
Inventory GridView is outdated and even my version "might still work", but I won't fix it any longer in the future.