Hey there,

recently I started bugging under the map while grinding the Mirumok Rotation. Circled the location in red in the picture.

Encountered it only with Succ Mystic, before switching to Succ I didn't have this problem. Did not encounter the problem with other classes yet.

Close to the end of fighting the monsters around that tree, you start bugging under the map and end up on some sort of cliff underground (Texture wise you are already under the map) or you fall and end up drowning.

EDIT:
23.03.26 - It's still happening.