hello,

After some adjustments...

// #################### Z-Probing #####################

#define Z_PROBE_Z_OFFSET 0
#define Z_PROBE_Z_OFFSET_MODE 0
#define UI_BED_COATING 1
#define FEATURE_Z_PROBE 1
#define Z_PROBE_BED_DISTANCE 1
#define Z_PROBE_PIN ORIG_Z_MIN_PIN
#define Z_PROBE_PULLUP 0
#define Z_PROBE_ON_HIGH 0
#define Z_PROBE_X_OFFSET 40
#define Z_PROBE_Y_OFFSET 60
#define Z_PROBE_WAIT_BEFORE_TEST 0
#define Z_PROBE_SPEED 2
#define Z_PROBE_XY_SPEED 150
#define Z_PROBE_SWITCHING_DISTANCE 10
#define Z_PROBE_REPETITIONS 2
#define Z_PROBE_HEIGHT 0
#define Z_PROBE_START_SCRIPT ""
#define Z_PROBE_FINISHED_SCRIPT ""
#define Z_PROBE_REQUIRES_HEATING 0
#define Z_PROBE_MIN_TEMPERATURE 150
#define FEATURE_AUTOLEVEL 1
#define Z_PROBE_X1 150
#define Z_PROBE_Y1 20
#define Z_PROBE_X2 20
#define Z_PROBE_Y2 280
#define Z_PROBE_X3 280
#define Z_PROBE_Y3 280

Problem A:

i have set Homming_feedrate_z to 5 instead 40 and the first problem was solved;

Problem B:

After execute the command G28 for homing all axis and then the G29... i got the folling result on LOG :

15:22:24.390 : Z-probe:0.67 X:150.00 Y:20.00

15:22:37.555 : Z-probe:0.96 X:20.00 Y:280.00

15:22:51.483 : Z-probe:2.55 X:280.00 Y:280.00

15:22:53.468 : Z-probe average height:1.39

15:22:53.468 : X:280.00 Y:280.00 Z:1.100 E:0.0000

After performing a g32:

15:28:57.507 : Z-probe:0.62 X:150.00 Y:20.00

15:29:10.673 : Z-probe:0.92 X:20.00 Y:280.00

15:29:24.635 : Z-probe:2.52 X:280.00 Y:280.00

15:29:25.963 : plane: a = 0.0062 b = 0.0042 c = -0.3893

15:29:25.963 : Transformation matrix: 0.999981 0.000000 -0.006173 -0.000026 0.999991 -0.004231 0.006173 0.004231 0.999972

15:29:25.979 : CurrentZ:2.02 atZ:1.10

15:29:26.618 : Info:Autoleveling enabled

15:29:26.618 : X:279.98 Y:279.98 Z:4.935 E:0.0000