Auto Upload is very slow after NC15

after upgrading to NC15, the android app tries to upload my new pictures, but it gets stuck after some % and nothing happens. I have to open the NC app and keep the screen on and then it loads again some % (around 20) very fast and then it gets stuck again. Therefore, uploading an image takes up to 10 minutes. A video doesn’t work.
Also I can’t upload files manually. It opens the NC App, but nothing happens.

Before NC15 it worked very well.

Hi @Nobody,
best to raise this issue on the issue tracker of the Android app: