Here is another one
nova.astrometry.net/user_images/9384463#annotated

It is same using default 4 Small Scale solve and 1 Default

Please upload these two files somewhere so I can download the fits files onto my machine.

You can dowoad it from astrometry:

Right click on solve.fits and click save as

Did not work for me, tried that unsuccessfully before and just retried same. It says "This does not look like a FITS file". It is only 4Mb.
Please post your original file somewhere and send the link.
Hy

Ooooh ok, here are they. Mind you this two might be a bit different ones as I save and manually upload all the the time to astrometry but situation is the same,

drive.google.com/drive/folders/1qmRNUa3v...MnakjalLohCGp0hD9KHt

Got your two images.

I am debugging this with the FITS Viewer's solver, and you can try and reproduce my experiments.
Open the fitsviewer solver, which is documented in the KStars handbook, currently on page 169
docs.kde.org/trunk5/en/kstars/kstars/kst...f#fits-viewer-solver

I was able to solve solve2.fits with the configuration below using my align profile



and here's the Align profile I had. I didn't play around with parameters, it was the first solve I tried with it once I set "use scale" to the right value, which I found in the fits header.
(It may not be the default, you can play around with it, but I'd be surprised if there are major changes with other similar numbers.



Note that only 7 stars were found, so that is pretty few stars for a plate solve.

In the other image, solve.fits, there were only 4 stars detected and the solve failed for me, but that image is much worse quality. That is, look like there is a guiding bump or star trail (i.e. several stars are doubled). Something like that would cause solving issues.

Hy

Oh yes the secondary one is very bad, as I said it was probably different than original, but online astrometry does that one as well

nova.astrometry.net/user_images/9391056#annotated

I will try your parameters, but suprise suprise, it is cloudy

Also, can you try using Online Astrometry as default with bad one so we can report bug to Jasem? Maybe star extraction is happening even for Online astrometry and that is why it fails?

You can try the fitsviewer solver even if it is cloudy!
Use load that image into fitsviewer and solve it.

Sorry, I don't have time in the next week or two to mess with other things.
Hy

Ok that is interesting turn of events, when I click Solve on FitsViewer, whole kstars crashes. There is nothing significant in logs.

[2024-02-19T11:21:05.931 CET INFO ][ org.kde.kstars.fits] - Saved FITS file: "/tmp/solvera011eff4b132428cbf4914cd6270123c.fits"