Nextcloud not available in "Save to Files"
Steps to reproduce
Setup Nextcloud app with Files integration. Check that it works in the Files app itself.
From any other iOS app, use share sheet "save to files"
Tested with saving PDF, JPEG, etc. files.
Tested with reinstalling Nextcloud app, disabling/reenabling Files integration, and on multiple iOS and iPadOS devices.
Expected behaviour
Nextcloud is available as a target to save file.
Actual behaviour
Nextcloud is not available. It is grayed out.
Screenshots

Logs
N/A
Reasoning or why should it be changed/implemented?
Was previous functionality.
Environment data
iOS version: e.g. iOS 15.2 and iPadOS 15.2
Nextcloud iOS app version: 4.2.0.5
Server operating system: Ubuntu
Web server: nginx
Database: MariaDB
PHP version: 8.0
Nextcloud version: 22.2.3
Isn't that an app specific issue?
While Save to works with Twitter, Whatsapp, it's not possible to select Nextcloud as storage location in the cascable-app

iCloud Drive works with the app - I wonder why. Have you checked other apps, too?
Thanks for pointing that out.
The app I was using is Safari and a Shortcuts to save the webpage as a PDF, link, or webarchive. This used to work all the time. I think it stopped with the upgrade to iOS 15; so something changed.
Most apps that I tried behaved like above; with Nextcloud grayed out as a File Provider. A couple apps, like PDF Expert, worked. Using the Print function in Safari, and then saving as PDF does give Nextcloud as a File Provider.
I'm not sure what changed in iOS 15. I don't think this is the same as https://github.com/nextcloud/ios/issues/943, which has been a longstanding issue, since I'm not saving folders when Nextcloud is grayed out and since this worked previously with Shortcuts.
Someone had the same issue on Reddit. In the discussion, someone linked to a Twitter Thread with the explanation and a possible solution: Thread Start: https://twitter.com/benoitsan/status/1380507723020783619 Solution (Part 1): https://twitter.com/palmin/status/1380515932167098384?s=20&t=3jwh_JmwyJKDiZhT268UlQ Solution (Part 2): https://twitter.com/palmin/status/1380516405456539649?s=20&t=3jwh_JmwyJKDiZhT268UlQ
Maybe this helps...
I noticed NextCloud is available in the Files app but cannot be selected as a destination for saving files in the Shortcuts app. (The location "NextCloud" is no longer greyed out but once selected the "Open" button is greyed out). Is this expected behavior?
Is this another version of this issue? https://github.com/nextcloud/ios/issues/943