I am seeing the following errors in the log
Warning filesystem Storage wrapper ‘sharepermissions’ was not registered via the ‘OC_Filesystem - preSetup’ hook which could cause potential problems.
Also, trying to upload larger files (anything over 500MB) the transfer will just randomly stop and the message “System is in Maintenance mode” appears in the top right hand corner of the browser window.
Im currently running nextcloud 20 on snap in CentOS 7