TS4 - Sims hand gets stuck after picking up a book or doing Spa interactions

Vanilla game, new save after base game update, no CC, no mods. 

Sims picks up book but can't hold it, books goes to floor and hand stays clenched.

This also happened when I had a Sim give another a foot massage, the hand stuck. 

Resetting fixes it temporarily but it keeps happening over and over as soon as an item is touched.

Screenshot 1 - First instance after trying to read. 

Screenshot 2 - Second instance, two Sims stuck after trying to read (the first one had been reset once, but then quickly went back to the clasped hand)

Thank you