Problems using iOS app version 6.0.0 / iOS 18.0.1

When sharing to Nextcloud from the share sheet (i.e., tap a photo, tap share icon, tap Nextcloud) :

  1. It was formerly possible to use the “Create Folder” button within the save screen to create a new folder, which one would then be able to save the shared file into. This appears to not be possible any more, as it brings up an error dialog “File with name /new_folder could not be located” but then appears to have entered said folder, but if one tries to save the file, a similar error arrives. The folder is not actually created. Creating the same path/folder works fine if the app was started from the homescreen instead of via share.
  2. It was formerly the case that the sort order of folders/files displayed in the save screen at least sometimes mirrored the preferred sort order for that folder in the main app Files module. Now it is always and only set to the default sort order (Name). Is there a way to change the sort order displayed when in the save dialogue? Or even to change the default sort order generally?

Forgive me if these are ignorant questions, I assume I am just failing to adapt to changed behavior.