Me and my friend were both having this problem. Its like idk we are able to see shadows on the other sides of things, its reaaaally hard to explain. all that needs to be known are the shadows are acting really freaking strange.
things to note: this happened to me in the aviary (stage with multiple biomes) and wraith trap and some others I forget.
anyone else having problems with weird shadows? doesn’t always happen but when it does it is really annoying.