I recently noticed that my nextcloud instance was missing photos. I have the android app set to automatically upload my photos. When I need to clear up space on my phone, I make a separate backup (because I’m a paranoid SOB and hard drives are relatively cheap). I noticed that nextcloud auto upload missed about 10% of the photos. I’m not going to bash the nextcloud devs, as I recognize that I am using a free product and am owed nothing, but I’m making this post so others are aware of this risk. Apparently I’m not alone https://help.nextcloud.com/t/android-client-does-not-auto-upload-all-images/216849/14


Interesting, I’ve never had this problem and have been using the auto upload for many years. I only use it for the photo taking, though. Any time I go through a phone cleanup and delete photos and videos, I’ll look at the folders I backup to on nc and actually go through them carefully to make sure everything was uploaded.
My install comes from f-droid so not sure if that’s something to do with it (unless yours is too).
Mine was also f-droid, but my wife’s wasn’t. Experienced issue on both :(