My Synology Photo folder has 8,000+ images. I back it up using Hyperback. I went to Backup Explorer to confirm everything was getting backed up. It (Backup Explorer) said there were only 1000 items and showed only 1000 files which could be restored.
I restored the whole Photo folder and all 8,000+ images were in the restored folder. Hopefully Synology will squish the bug, but I’m at least reasured all photos are getting backed up. I was afraid they were not.