I found a softlock. In the slime area, the bottom right where the chest is past the cart you have to push. If you stand near the chest, enter the digivice, then leave the digivice, the room resets - including the cart. The cart cannot be pushed or pulled in any way to allow you to leave. I can't teleport out, because the room south in the digivice is blocked due to corruption - or at least I assume that's the teleport room, I can't find anything that would allow teleportation.