I have migrated a large number of notebooks with PDF attachments from Evernote into the desktop app and synchronised them via webdav with encryption enabled.
I have then synchronised to the ios app (with attachment download behavior = always) and can see the notebook tree and notes. However I am unable to open the PDF attachments. I see a white icon with a downwards arrow and a link to the PDF, however tapping on it seems to do nothing.
Versions: ios version 10.0.47 on iPhone.
Desktop 1.0.216 on Windows