Yes I already cleared all data yesterday (had it then as well) but it is back and rather annoying.
Well what's left is reinstalling game (which sometimes works, but setting up everything again.... ouch), and it this will not help then only thing You can do is waiting till IGG will fix this problem.
FWIW, I run the game under BS 3 as well and have no issues; so it is something specific to your install. I agree with reinstall idea.
Name: Rusty (Rustyx in game)
Guild title: resident wisenheimer.