This happens to me as well. Especially when I am KB Strong. I think the volume of heavy cleans exposes some of my technique flaws. I realised that I wasn't using more of the hips and probably was pulling the bells more. So I stopped for a while and tweaked my technique, but can't say for sure if it has solved because I will start KB Strong again after the ROP Jurassic program I am on. 3 more workouts left for that ! 3 more tough workouts
So maybe revisit your clean and check if you are using enough of your hip drive to get the bells up rather than pulling. Also check where you are holding the KB handle and how 'your' KB rests on 'your' hand.