Visual bug - Lighting/shadow flicker near start of run

[Reldio]

I just want to post awareness of a consistent visual bug I experience with this game, and every Let's Play I checked on YouTube had the same issue. It's very easy to spot if you start a new run, then wait ~3ish seconds, the lighting will flicker/reload around the sides of the map. Maybe it can be fixed, or at least if not this post will let others know it's just an issue the game has.

I also noticed the visuals look a bit janky during the dungeon boss but it was harder to nail that one down since I was occupied trying to win, but I swear I saw the trap tile icons look a bit flicker-y in one or two situations.