Hi,
Collabora default templates have been moved from core/templates/ to apps/richdocuments/assets/
We upload our own templates to set the default document language (we’re not Germans) 
After an NC upgrade I get this error.
Just saying…
Technical information
=====================
The following list covers which files have failed the integrity check. Please read
the previous linked documentation to learn more about the errors and how to fix
them.
Results
=======
- richdocuments
- INVALID_HASH
- assets/template.odp
- assets/template.ods
- assets/template.odt