Now my sims walk with those strange blue shapes dancing around their faces. How funny to see those stuff stay out of hot tub, quietly waiting the sim to leave and re-follow him...
My guess is the broken Accessories. I would guess you have accessories on those sims. I dont know about your game setup but thats my guess.
I have tried everything to get them to work. Moved the items to saved sims folder and tried them subfoldered with meshes in DL folder. Even thought I found updated versions for BV but nothing works so far.
EA needs to fix this honestly. I have been hoping they would but sadly I am considering getting rid of them all.
Have your sim go to the mirror and get rid of those accessories. Sorry most of them cannot be used now. I think this problem has been happening since seasons in preparation of BV Accessories only EA'S can be used without the problem.
It Stinks. I hope this helps.