Same here. Aps-c nikon and 35mm lens and whatever focal length, stars, or pixel size I put there, it can’t plate solve in 99% of the case. This worked better with 0.99.7, not always but increasing focal length it got to plate solve the image. now I tried from 35mm up to 60 in 1mm increases and it didn’t. Thanks for the suggestions, will try that.
Edit: plate solved with astrometry and copied the RA and Dec central values into the right fields of RA and dec and now it did plate resolve. That worked!
Edit2: What I don’t understand is why the RA and dec are way off from a star in the center of the image that I searched for in the image parameters field and the central RA and DEC which nova.astrometry provided. I mean, star 35 ERI is in the middle of the image, and it shows RA: 32.0446 and DEC: 58.7112 and astrometry provided RA: 59.732, DEC: -1.886
This is the image: Astrometry.net