both (protoface & cura in the jog tab) of the work on the same side that is the weirdess.
and when clicking home on the x-axis, the tray moves in the right direction on to the stop switch.
I have to be honess, I like cura more than protoface (dont get me wrong, the apps its self is great but I like a all in on apps better, slicing and printing) So I havent done alot of print in proto.. i guess, i'll have to try it and see if I get the same problem.