[Open] - Guest sim won’t change to bathing suit on hot tub

I don’t interact with that specific sim anymore (long sad story) but I think the problem was with that particular sim. 

It did happen recently with one of my sims but like @Ilois4 said, on the second swim the sim did change outfits.

I also have this issue. It really got in the way with this one relationship because whenever I put them in the hot tub together, he wouldn’t take off his sunglasses. I’ll post pics. I don’t have any video but I could get some. Related to this and for me what would be more important is the Honeymoon Tub interaction, where a couple hang out and chat in the big bathtub. Not only do they hang out in their clothes, but they actually Don’t talk at the same time in this interaction yet I can never hear it. The volume is cut out every time. I’ll provide video upon request.