marlin2 with tmc2209 xy sensorless homing z endstop but start printing 2mm higher

HI Guys,

i am setting up a folger ft6 and i have it setup with tmc2209. i have configured the sensorless homing on x and y and Z has endstop.

the printer homes ok on xyz but when printing it lower the bed moves to the right place raises the bed 2mm from the nozzle and starts printing there.

on the machine i have not setup Z offset.

Please can anyone help.

regards,

Tim