The other day I did a mission (rising tide if that matters) and when I got a food drop with it came a Large Wolf Spider. Finding that a bit odd i sent my entire army out to meet it and the spider does nothing. The spider animates somewhat I can see the legs moving and it scratches itself but other then that the spider stays in that spot and it cannot be attacked nor does it attack. I beat Formicarium challenge 3 for a reference to where I am at and I did not order wolf spiders to fight for it to spawn in. The spider has been there for a few real world days now. I have named her Octavia by this point XD. Pretty sure this is a glitch though lol.