M600 moves to the wrong corner.

Im having problems with my gcode_macro M600]
gcode:
{% set X = params.X|default(50)|float %}
{% set Y = params.Y|default(0)|float %}
{% set Z = params.Z|default(10)|float %}
SAVE_GCODE_STATE NAME=M600_state
PAUSE
G91
G1 E-.8 F2700
G1 Z{Z}
G90
G1 X{X} Y{Y} F3000
G91
G1 E-50 F1000
RESTORE_GCODE_STATE NAME=M600_state

I have converted myy E5+ to Mercury One (CoreXY)
Every other movement works just fine but this one behaves very strange now, i have not altered the macro.