Sims change into nude at restaurant ?

@pugsxxx   Hi!  Do you have the clothing optional lot trait?  If not, do you have a mod installed that might add nudity options?  I know of one adult mod (that we're not allowed to discuss here) which allows for this.  If you do have mods, try checking the settings for nudity options and / or removing the mod to see if the problem persists.

Nope don't have either of those 😞 

@pugsxxx     I did some testing with outfits and lot traits.  The only way I was able to replicate sims changing to nude was by adding the Clothing Optional lot trait to the restaurant lot.

If you're sure the lot does not have this trait, perhaps you could try repairing the game?