after upgrading to Nextcloud 18 and switching form Collabora to Onlyoffice I noticed that Onlyoffice was not working so I did a clean install on a backup machine and re-enabled all plugins. I noticed that the “Full Text Search - Files” plugin breaks Onlyoffice. After enabling said plugin you can neither create or viewdocuments. Disabling solves that immediately. All other elasticsearch Plugins including OCR work fine.
Nextcloud: 18.0.0 and 18.0.0 RC2
Documentserver: 0.1.2
Onlyoffice Connector: 4.1.1
After three-days headbanging trying to find out why OnlyOffice is not firing-up finally the break through: After disabling “Full Text Search - Files” OnlyOffice is working as expected. I can confirm this.