I have plate solving working on my stellarmate but the rotation angles seem strange. The attached image was taken with a 6D/EF200 and it platesolves in Ekos without issue, but the rotation is quoted as -155. If I solve the image in astrometry.net I get 245deg E. I took the image with the camera somewhere around 90deg so the 245deg value seems right. As a consequence of the plate solve calculating -155 it appears in kStars rotated by 90deg: