Hi,
I also have some difficulties with syncing my enpass vault to webdav. The hoster of the account is mailbox.org (OX cloud).
After re-installing enpass, I tried to enable sync again and run into the following problem:
Login works only, if a space inside the URL is encoded as '%20'. But this results in error 906409 (http 409 conflict).
https://dav.mailbox.org/servlet/webdav.infostore/Userstore/FORENAME%20SURNAME/
Enpass version is 6.8.2 (1084).
Version from Microsoft store. But the same happens on a fresh linux setup, too.
Existing installations on other devices show a blank instead of the url encoding representation (%20) and syncing works like a charm.
https://dav.mailbox.org/servlet/webdav.infostore/Userstore/FORENAME SURNAME/