If i run my start gcode, i prime the nozzle pretty close to the left front edge,
which means a position of X-10 Y-10.
The print area starts in the scale of the print sheet.- May you share a video or something else to better understand your issue?
the printer head should move to (0,0) on the (X,Y) plane, with the nozzle 2 mm above the bed. This is the front-left corner of the printbed.
The image here shows the result, with the nozzle ~20 mm beyond the edge of the bed in the Y direction. As the (0,0) point on the magnetic print sheet is 12.5 mm from the edge, the overall offset is ~32.5 mm.