I'm not sure whether to paste this in Technical issues or Bug reports; I'm sorry if it's in the wrong forum.

I'm constantly running into weird lighting in this game. Sometimes arenas will darken as I step across them, other times I'll see one square of shadow following at the same spot on the ground, darkening everything under it for a certain distance.

It seems that when I place a dark briar barrage, the ground in multiple areas will just turn another color. The floor beneath me in Devilish Drudgery likes to turn red.
Link shoes my char placing a bomb, which somehow sets off the weird lighting within the bomb range. That red lighting is not the result of any previous blast. http://cloud.steampowered.com/ugc/578952599715938230/1E7F97FC0492EC93AB4...