Heightmap wrong?

Hello there,
i updated yesterday my Duet Wifi to the latest Firmware and did a new Mesh Grid Compensation and got a Heatbed like this now:
https://gyazo.com/4302d0f55036d20fc0174dae66774157I use a BLTouch to probe the Heatbed.
This is my config:
[[language]] ; BLTouch M307 H3 A1 C1 D1 ; M558 P5 X0 Y0 Z1 H5 F100 T2000 G31 X26.50 Y0 Z2.50 P25 ;before Z1.23 M557 X30:310 Y20:200 S40; Define mesh grid
bed.g
[[language]] ; bed.g ; called to perform automatic bed compensation via G32 ; ; generated by RepRapFirmware Configuration Tool on Wed Apr 26 2017 11:11:52 GMT+0200 (Mitteleuropische Sommerzeit) ; Clear any bed transform M561 ; Probe the bed at 20 points X5 Y4 M401 ; M98 deployprobe.g G30 P0 X64 Y20 H0 Z99999 G30 P1 X128 Y20 H0 Z99999 G30 P2 X192 Y20 H0 Z99999 G30 P3 X256 Y20 H0 Z99999 G30 P4 X320 Y20 H0 Z99999 G30 P5 X320 Y77 H0 Z99999 G30 P6 X256 Y77 H0 Z99999 G30 P7 X192 Y77 H0 Z99999 G30 P8 X128 Y77 H0 Z99999 G30 P9 X64 Y77 H0 Z99999 G30 P10 X64 Y134 H0 Z99999 G30 P11 X128 Y134 H0 Z99999 G30 P12 X192 Y134 H0 Z99999 G30 P13 X256 Y134 H0 Z99999 G30 P14 X320 Y134 H0 Z99999 G30 P15 X320 Y192 H0 Z99999 G30 P16 X256 Y192 H0 Z99999 G30 P17 X192 Y192 H0 Z99999 G30 P18 X128 Y192 H0 Z99999 G30 P19 X64 Y192 H0 Z99999 S1 M402 ; M98 retractprobe.g
Did i something configured wrong?
I did searched a bit in the Forum to find a Solution but i didn't find something. 
If you haven't already, take a look at this page: https://duet3d.com/wiki/Using_mesh_bed_compensation. My understanding is that the bed.g file is used for G32 leveling, and may have a maximum number of points (though I may be confusing that with Delta calibration).
Mesh bed leveling is G29, and for coordinates it uses the [c]M557 X30:310 Y20:200 S40; Define mesh grid[/c], not bed.g.
You can only use one or the other (unless you have a delta):
On a Cartesian printer, you can use either mesh levelling (G29) or G30/G32 probing, not both. On a Cartesian printer mesh levelling is recommended but bed probing is still supported for backward compatibility with older firmware configurations.
Hope this helps (and hope it's correct  I still get tripped up on it from timetotime).