The game's still way too fast paced for anyone who isn't already really good at puzzle games. The board needs to be slowed down much more. Also please significantly slow down the opponents' movement too. In the game's current state it's more frustrating than fun...
Any antivirus other than than the one bundled with your OS is just bloatware. If you paid for it, then you've been scammed. Unless Windows Defender freaks out about a file for reasons other than it being unverified, the files should be safe.
Apparently the second equipment slot is broken on all 3 characters too. Depending on what you select first, if you try to equip something to it it will either remove the item from your inventory or crash the game.