I haven’t done anything with turntables yet.
but since photogrammetry works based on moving camera, you will need to trick it to use turntable.
looking at the photos, it looks like there is too much information in the background, and it’s used that to help align cameras.
you might need to do something about lighting the background to over expose it and make it all solid white. or do the opposite and make it all black.
other way to go would be to mask all the background out.
you could also try setting the alignment to high image overlap. so it only try’s to get image features in the center of the photo.