The issue happened to me and i fixed it in game. Go to the tree lab that burgle is in. For whatever reason there was 30+ weavels and some ants. (https://youtu.be/3Ys7GBUjOsk) After that the issue was solved, however i went back like 3 in game days later and there was 12+ ants; not in the lab but outside the spiders lair in a group. It looked like they were fighting over an acorn bit but im not 100% sure. Also weevils can get stuck in the lava lamp and you have to wait for them to clip through.