I did a update / dist-upgrade to my Pi4B+ running SM OS
KStars build 2022-01-23 stable release thinking the issue with polar alignment
would resolve, no go.  I have been successful before with the same gear and
setup for many months but for the past few weeks the PA aborts, parks the mount
and recommends slowing the speed, which doesnt fix the issue.  Is there something
in the stellar solver I should change or is there a log I can post for review ?
Cam is ZWO ASI533, 100 gain, 1.5s exp, offset 10, scope is WO GT71 with 0.8x FR.
Regular slew to target / capture and solve is working fine.  I have checked all cables,
nothing dragging, nothing changed since before when PA was previously working fine

EDIT update
the error message comes from  PolarAlignmentAssistant::processMountRotation method.
"Mount aborted. Please restart the process and reduce the speed."
I reduced the speed from 128x progressively lower until it would take way to long
to rotate to the next position and at each speed before the first mount rotation
the process stops with the message.  I also occasionally encounter guiding going
wonky and drifting off target so that I have to recenter and restart guiding.  Is there
some physical cause, maybe the cold weather (-15C last night), or is this software related ?

I tried running PAA with the new SM OS 1.7 beta: same issue.  I can no longer slew at reasonable speed without
getting "Mount aborted.  Please restart the process and reduce the speed". 
Im trying 8x slew which is brutally slow:it takes 14 minutes to rotate the mount! Params are
CCD: ZWO ASI533
Exp: 1.5
Bin: 2x2
Gain: 100
Accuracy: 30
Settle: 1500

*** added the log from 32bit SM OS truncated to after the mount aborts and then parks 
 

Dean
I'm having the same issues with very similar kit ie HEQ5 (belt mod) RPi3B+ running SM. Have you had any solution yet?

I've got also in rare cases the message : "Mount aborted. Please restart the process and reduce the speed."
but I use a narrow FOV of only 41 x 27 arcmin (which is not your case)
Reducing the speed didn't help.
I found that orienting the scope in order to get Polaris in the FOV solved the problem and that I could continue the PA process normally.

Hi, sorry for the late reply, but I found if I start at 800x speed, I get the
dreaded message and then I lower to 700x and it starts working ok.

Try unchecking the Meridian Flip option to see if that helps. I notice the same issue with the new polar alignment tool.