Sims needs wont decay, and are instead filling.
I'm playing in a household of 2 young adult sims, a child sim, a newborn, and a cat, and one of the YA sims' Hunger, Bladder, Energy, and potentially the Fun needs aren't decaying. He was playing the piano and I watched his energy bar rise from where I had cheated it to, with out doing anything. The rest of the household still is but only the one sims isn't. I haven't bought any rewards traits that would affect the decay of any of those needs, and I disabled mods and its still not decaying. I haven't used any cheats to affect his need decay either.
He has the Lazy, Bro, Music Lover, Cheerful, Domestic traits from CAS, and the Frugal, Storm Chaser, Stoves and Grills Master, and Carefree rewards traits, and the only newer moodlets for him are "Made a New Friend" and "Righteous Riffs" bit neither say anything about certain needs staying maxed. He also has the Close-knit and Indoorsy Lifestyles, and is Balanced with Bad Luck currently. I have every pack, so I really don't know what it could be.
Has anyone dealt with this/ know what could be?