Hey, This has apparently been fixed in the newer beta.
If you set the camera to download both RAW + FIT or FIT only, it will work.
With the new beta, hopefully just setting NEF files will allow the plate solve to work as having the above setting. I haven’t tested this yet. Sometimes downloading both NEF+FIT can slow things down so it’s probably best to decide which way to go. If you do download FIT you have to do all your calibration files with the FIT files from SGP. If you use NEF you can also take flats/bias/darks with just the camera.