SORRY, there was a problem with the harnesses Atika and Badger.
I didn’t notice it myself for a long time. Then I searched for the error for a while. But it seems that it was not the 3D model. The mod file itself was corrupt. But this concerns only the EA upper body version, the muscle version was fine. I had to recreate the file for the EA upper body. So your Sims lose the piece of clothing and have to be outfitted with it again.