Dungeon Defenders 2 Bug Reporting

Unable to activate anything (E key) until after building a defense. (Windows)
I'm unable to use the E key to activate NPC's, open starting mana chests, etc. until AFTER building a tower or wall (which means I can only do this in town).
Repro Chance: 100%
Steps for Bug Repro:

Starting the game and moving around the tavern/town is my only step.  The bug occurs on all characters and restarting has not resolved the issue.

I'm unsure what is causing this bug as I have not changed any settings since yesterday when it was working fine. 

Expected Results: E key works as normal.

Lefty posted this bug on07/06/17
Lefty 07/06/17 22:19

Rebinding activate to another key "fixes" the problem but doesn't explain why I can't use E as normal.

DungeonNewbie420 07/25/22 15:05
this bug happens every time i move to a new session or different area. I found that pressing the upgrade button easily fixes this problem for the moment but it's starting to get annoying xD.