After changing SolidCP to exchange 2016 server I am unable to change the mailbox plan a mailbox is set to.

If I use the dropbox to select another mailbox plan for a mailbox and click save change the task never completes.

On the Exchange Server with SolidCP Server installed. There is a task “Windows Problem Reporting” which consumes a whole CPU core and never finishes. I have to restart the SolidCP Server.

I have tested doing the same action with an exchange 2013 server and it works just fine.

Other tasks like creating mailboxes, viewing mailbox details work with exchange 2016.