I've got an SQL Failovercluster running with Windows Server 2016 and SQL 2019. That Cluster was recently updated from SQL 2016 and worked without issues.
But now I've noticed that when adding a new Node to an previously upgraded SQL Failover instance (over 2019 installer) I'm unable to move the database to that new Node.
Problem seems to be that the cluster is trying to access the database files with the wrong folder path. On the new Node he is trying to access MSSQL15.DATABASENAME folder while it's actually MSSQL13.DATABASENAME since this database was upgraded from 2016.
Has someone an idea how to fix this?