When quickly moving between dungeons after combat, character movement may occasionally behave abnormally.
(In this case, pressing the appropriate key among Numpad 7, Numpad 8, or Numpad 9 will clear the bug.)
Numpad 7: Restores character movement
Numpad 8: Switches the camera to the character’s perspective
Numpad 9: Switches from a black screen back to the normal view
(These are the number keys on the right-hand side of the keyboard — the numeric keypad — not the number keys along the top.)