[A few bugs with cura 5.3.0.]

Same here, I turned off Arc w Weld for now..  

[Ultimaker Cura 4.8 BETA is available]

I noticed that the Z height is not set at the beginning of each layer.  I use a filament change plugin (M600) for OctoPrint, And it inserted the code correctly, but there used to be a move to the new layer height at each LAYER: marker, but I did not see it in my 4.6 sliced code.  I will try to re-vert to 4.7 and re-slice.