Almost none of the problems with the controls can be reliably reproduced, but here are some of the issues:
• Inventory stops opening. For a game where inventory is such a huge part of it, not being able to open the inventory menu is insane. Relogging fixes this.
• The cursor in the inventory doesn't always represent what is actually selected. This results in the wrong item being dropped or taken to hands.
• Navigating containers and clothing is still very clunky, and sometimes the inventory window can't be closed while the cursor is unresponsive. You will try to move down, nothing happens. Try moving the cursor up, nothing happens.