Cura 4.4 has many annoying problems, some models are taking ages to slice and my 4.3 profiles are not working properly anymore. I don't know how many changes were made in the slicing core, but it seems something is very wrong. As example, I've attached a ridiculous model I created to calibrate the extruder which takes a long time. Another problem I've seen is the distance from model to support, when using 0.12mm as layer height, you can't set 0.24mm as Z distance, if so Z distance will be set as 0.12mm. In order to work around it, i'm using 0.241mm as Z distance.