Today I went to load my images and I could not see the thumbnails.
+1. please, maybe provide a few more details as to what apps you use and how you normally work with your photos.Can you tell us more detail about what the workflow is
Were you using any extra files or extensions for viewing the Nikon raw files??The Nikon D850 is only supported in High Sierra so you would need to upgrade. If you are on High Sierra the Nikon D850 RAW files are supported so you can use it in Preview, Photos and the Finder will show them too, but if you are still using iPhoto then it will not.
I thought they’re was a thread that referred to the D850, but I guess I was wrong. I looked and couldn’t find it. No, I didn’t mean it was the OP.? That was her first post. Sure you're not thinking of someone else?
Yes, that was the one I was thinking about, thanks for that.I had the same issue with my Fujifilm GFX50R. That might be the thread Bob is thinking about?
Anyway, the cause in my case was my change to using lossless compressed RAW files. Have you changed the way your D850 is saving RAW files?