Maybe try using and checking out Orca Slicer.
I, after many attempts with CP, gave up. I reported my problem to support, but nothing solved the problem. I mean nothing, no matter what version of CP or trying to (supposedly) update the nozzle settings for K1C.
Eventually I started using Orca Slicer and since then everything is fine. In addition, I noticed that the quality of prints is better than in CP. I don’t know why, but it is better.