@dc42 I have lowered the PA value to 0.04 from 0.08 and now it looks better. I tried the same thing a few days ago but there was no inprovement. I think is was my mistake, sorry. Thank you for support.

@dc42 the two contour lines get thinner and thinner at the end so that there is a gap between them.
Now I try to lower PA value again.

@dc42 I dont know if the quality is equal to RRF 3.3.
I have tested different setting with input shaping an PA.
I tried different PA values, acceleration values, jerk values and speed values but I always get the issue on the picture.
But when I turn PA off, the issue is gone.

@dc42 I'm testing with input shaping.
There is always not enough material at the end of lines. Maybe PA is not working right by deacceleration.

@dc42 I have checked verison but everything is okay. I had also no step errors.

=== Move ===
DMs created 83, segments created 42, maxWait 236506ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 2873, completed moves 2873, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1

@dc42 Thank you but I still get the issue

@dc42 M572 is in the start script of gcode

@dc42 Firmware date is ok

M115
FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 3.4.0beta2-inputshaping ELECTRONICS: Duet WiFi 1.02 or later FIRMWARE_DATE: 2021-08-02 16:26:18

config.g
40x40x40_Cube_140mms0.08.gcode

@dc42 PA is still not working for me.

=== Move ===
DMs created 83, segments created 42, maxWait 206756ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 2700, completed moves 2700, hiccups 0, stepErrors 578, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1

@dc42 I have also tested new version but can't see any improvement