Recently (about 2 maybe 3 weeks ago) my tarantula molted. It's a 1" Mexican Red Knee sling. After it molted I saw that one of its feet would drag some of the substrate while he walked. I assumed maybe I just needed to clean its enclosure or that it had webbed the substrate, I don't know. But recently I saw it had that one foot stuck to the side of the enclosure and was struggling to get away. I don't want it hurting itself or stressing out so can someone please tell me what the problem is? I know that their feet stick by spinning with their feet so could something happen to its foot while molting?