z axis start print too low

#1
Recently updated firmware using cura. Now prints start too low. Printer auto home and bed level good. When the print begins the printer starts the first layer 8mm too low. This is pushing the bed down. Then I have to z correct up 8mm.
cura start menu
G21 ;metric values

G90 ;absolute positioning

M82 ;set extruder to absolute mode

M107 ;start with the fan off

G28 X0 Y0 ;move X/Y to min endstops

G28 Z0 ;move Z to min endstops

G28 ;Home X/Y/Z

M104 S{material_print_temperature} T0 ; Preheat Left Extruder

M104 S{material_print_temperature} T1 ; Preheat Right Extruder

M109 S{material_print_temperature} T0 ; Preheat Left Extruder

M109 S{material_print_temperature} T1 ; Preheat Right Extruder

G91 ;relative positioning

G90 ;absolute positioning

M218 T1 X34.3 Y0; Set 2nd extruder offset. This can be changed later if needed

G1 Z25.0 F9000 ;raise nozzle 25mm

G92 E0 ;zero the extruded length again

G1 F9000

M117 Printing...