Pathing NPC ghosting in the mansion

[mischief419]

I can't group in MR - everyone just keeps getting a ghosted red con from basement that destroys groups every 30 minutes. It's been doing this for ages -- any potential fix to this? There are a LOT of non-classic goodies here for unreasonable classic oddities: In this case, I feel like it would be a reasonable exception if it's possible to fix mobs ghosting from basement to MR if it's something fixable~ thank you!