Even with autosync enabled, I need to enter the app to upload photos

Hello community. I recently started using nextcloud.

I’m using it to store photos. I activated autosync on Android but the photos aren’t uploaded unless the app is open on the screen. If it’s running but in the background it won’t upload until I maximize the app on the screen.

Am I doing something wrong or is this normal?

I’ve already checked the permissions and the app has all the ones I could find.

Maybe this is the reason:

As an alternative I use FolderSync - this also supports Nextcloud via WebDAV and seems to work fine so far also with automatic upload of new photos in the background.