I have come across a strange bug/problem with 3.6. Most of my sliced gcodes that I run from a SD card seem to get stuck on Z 0.3. The printer does not do Z hopping although I have it enabled and after the first layer it just keeps printing next layers without moving the Z-axis at all, making the extruder knock like crazy trying to extrude into the previous layer. The printer display says Z 0.3 the whole time. 3.5.1 did not produce such a problem ever, and I tried going back to 3.5.1 yesterday and immediately got normally and succesfully printing gcode files with basically identical settings.