The new Kopano Webapp is severly broken if big external storages are attached in the “files” view. Then the Apache error log is filled up with log messages indicating that it tries to add all files to a cache:
Fri May 22 00:17:45.846777 2020] [:error] [pid 2727] [client 192.168.1.166:42594] [DBG][FilesListModule] Getting cache for node: 49eb6ce2ae933880f6fe61cc9e626db3/install/portableapps/PortableApps/XAMPP/App/xampp/mysql/backup/test ## user499ebe01e61bbab09703fc6a8bb5899f, referer: https://192.168.1.88/webapp/
This breaks the webapp heavily by making it extremely lagging. The storage configured in the settings menu cannot be removed because of this lag, the temporary files in
/var/lib/kopano-webapp/tmp have to be deleted to make the webapp working again. If a storage (SMB/Nextcloud) is added, the problem persists. Only removing all external storage from the webapp for now works.