This bug has happened many times, usually seems to be triggered during combat and swapping between moving by clicking and holding down the LMB.

The character will ignore the tile I hold down on and sometimes will follow when clicking. This bug can also cause the player to fall through the map and not die or respawn making the only option restarting the level.

In the following clips you can see by my cursor remaining highlighted that when I press LMB the character will move towards the designated location however when I hold LMB, it ignores the command and is also ignoring the map structure by not triggering the pressure plates.

Thanks Team In Advance,

FacadeJG

EDIT

Upon testing thanks to a fellow player, it seems to be triggered by an abundance of items spawning on the player due to Armour Enchantments such as Food Reserves or Surprise Gift.