I see this thread has been quiet for some time. I presume the problem was resolved for most people?
I have started experiencing this problem with the latest stable release of KStars from "deb ppa.launchpadcontent.net/mutlaqja/ppa/ubuntu/ jammy main"
I have been using KStars / Ekos on Ubuntu for a while.
The last time I used it successfully was mid October, 2022. I am not sure which release I had at the time, buy I used the polar alignment successfully multiple times with my refractor and with my RC6.
More recently, I finally got back to trying to do some astro-photography and made these changes before doing the polar alignment setup:
I added a replaced my ASI 120mm mini guide camera with a ASI274mm mini guide camera which is in an off axis guider.
I added a focus motor on my Pegasus PPBA .
I did an "apt-get dist-upgrade". Since that, I see that I am now on Version 3.6.2 Stable (Build 2022-11-30T18:14:22Z).

Unfortunately, I am not sure which version I upgraded from. However, I can confirm that I didn't have the optical trains feature - as I was initially confused about the changes I need to make for my new guide setup. It would have been within the last 7-8 months, since that is when I set up this computer.

If I go through the normal polar alignment setup. I seem to hone in on the azimuth, but double the altitude error. I eventually tried to look at the revised error to hone in without looking at the arrow overlays on the photo and this seemed to work. I see others on this group tried the same process with a similar outcome. I cannot see the toggle to reverse the vector. Was this feature removed, or am I looking in the wrong place?

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