Its an actual glitch in game that can happen to any character, where you look like you are standing on one tile, but you are in fact on a different one. You close your paperdoll, reopen it, and bam it jumps you back to the correct location.
I noticed my gargoyle would get stuck 90% of the time running a heartwood quester, put her into wraith and everything works fine. Guess My stealth Crafter will have to have necro on his jewels!