Sync_plan_position_e() dual extruder bug (no replies)

Hi,
i have a dual extruder printer with marlin firmware.
The problem is when i use the 2th extruder.After call change tool gcode (T1) and call the gcode "G92 E0" the printer lose position and go randomy (XY).
I tried to change the function gcode_G92() changing the call sync_plan_position_e() to sync_plan_position() but when i print cylinders the layers are shifted in xy.
Any ideas?
thanks,