On the bottom floor of my colony, the duplicants will not pick up anything when I tell them to sweep it. Even if it is top priority, they just refuse. There is oxygen in there, but they just won't do it! I don't see any reason why they won't, because the area is completely habitable.
Steps to Reproduce
The stuff on the floor likely is glitched because it was covered by tile but it shot up onto the floor like normal. It also could be an issue with the AI of the duplicants.
This issue has not been confirmed by a developer yet.