Nextcloud app shows pictures more than once

I have a strange problem, which seems to come from the server, but is only visible in android nextcloud app.

When i open a folder in the nextcloud app containing images, and click on an image to see it, and then i swipe to the next image, i see the same image again, after the second swipe i see the next image.

Some images are 3 times shown, other only once.

The image shows also the same filename on top.

So i deinstalled my nextcloud-app on my phone, reinstalled it, connected again to my nextcloud… the same again on the same images.

Also on another phone…

So it must be serverside, or the server sends wrong informations about the images to show them.

When i delete the preview-folder in appdata, the app tries to show also the image more than once, but has problems to show the image until the preview is generated again.

I run nextcloud-AIO and Nextcloud-Android on GrapheneOS.

How can i debug the problem?

[edit]

Strange… i rechecked this problem on a stock-android from samsung… this images are shown only once…

Ok… on my samsung i use Nextcloud-Dev.

So i installed Nextcloud-Dev on my GrapheneOS too… and surprise, the multiple Images are gone. They are shown only once too.

Yesterday i recreated the file-index new and the previews also… after this tests i deleted the app-storage… now on my grapheneos the images are only shown once as well.

Seems it was a problem with the file-index on the server, which was only visible in the android app.

[/edit]

thanks jakob

No, it does not work.
I deinstalled and reinstalled the Nextcloud App again.
Now the images are shown twice or more again.

The Dev-App shows them only once.

That’s the final state, also on GrapheneOS

I think, the Nextcloud-App (not dev!!!) is broken.

So i checked again, another folder…
images are shown twice (or more) on nextcloud app, on nextcloud dev-app on my samsung and on my grapheneos…

so both apps are broken.

I also run another nextcloud. not AIO… just installed a few years ago from install-package.

here is the same. images are shown twice too on my nc-android app.

So it’s NOT serverside.