Many thanks for playing our game. It's great to see how far you got. Sorry about that load save bug. We'll fix it post jam for sure. Given your screenshot and description we were able to work out that any killed enemy keeps its grid square blocked when you reload, even though they're dead. For now, if you do save, make sure you can walk around the enemy before you kill it. Not the best workaround but it's all we've got for now.
You made it to point 5 in the map BTW. Good job, you're probably about 30% of the way through the whole game:
Dungeon Diver by Arlorean on Sketchfab