on occasion, when attempting to exit one map tile and enter another, an enemy will occupy the first black spot adjacent to the edge of the tile you want to leave. by moving toward that black spot the enemy is occupying, the screen goes to black indicating a map tile switch, but the screen never stops being black and the new tile never loads. I'm assuming this may be due to the game getting confused about player placement on the new map tile. this bug necessitates closing the game and reloading a save.