Thank you for finding the problem, but the wantless sim first left the lot, then came back invisible and no matter how I change the aspiration - with machine or with cheat objects - he still has no wants.
Hmm, no. The game version is 1.17.0.66. I've had jump bugs before, but not with this sim (another sim, serving food, bathing dogs). I didn't know this is what they were - I thought that was a corrupted family or something.
I have a jump bug and the options in the interaction menu are missing (social interactions with a visitor sim). I moved the hacks from the game with DownloadOrganiser... The sim still jumps. I've got all EPs and SPs.