Ios upload pdf from other apps (Liquid

Suddently the feature that supports exporting pdf from other ios apps to nextcloud has disappeared.

It is a must have in order to give the app any real functionality.

Anyone who can tell if the feature is removed or if there is a setting somewhere to turn this feature on/off?

We use for invoices, documentation etc. that is received by email and then should be stored in nextcloud.
Also for images.

it looks like it works for some image formats, but not for pdf.