A bug on day 3 has been found where if you do not stick to the sidewalk when walking a few steps past the drag-box you might activate an unfinished event, until a fix patch is released we recommend sticking to the sidewalk on day 3 aside from nabbing any treasure that may or may not exist behind the box.
A bug during a certain dark school moment reveals that stepping into some of the empty floor space at the southern cafeteria exit will teleport you back to a non-dark school, there is not recovery from this in the current build, you will have to load a prior save in this particular case.