So I just recently went from 21.02 to 21.03 and started having lots of pull up issues on the first layer that I didn’t have before. I originally thought it was temperature or something else. I soon realized that the pull up was was located under the path of the tool head. Even after adjusting z-hop to a much larger value from default (.5 from .1 mm), I noticed that the z screws still weren’t turning. When I rolled back to 21.02, everything seemed to be fine.