Inventory won't open at all.

Pressing the "I" key doesn't work
Menu > Inventory doesn't work
opening the Transmuting/Glyphing/Suffusencing window (which usually automatically opens Inventory as well) doesn't work

What's going on here?

try adjusting your zoom. maybe it moved off-screen for some odd reason.

try logging in on phone, (logging out of jsp on pc)then relog back into pc and off of phone. <<< Hope this fixes it