Am I reading this right: http://help.kaseya.com/webhelp/EN/kam/9020000/#7311.htm ? It looks like KAM doesn't support any Windows Server OSes. Did that change in 9.3?
I don't know the official answer, but it looks like the Malwarebytes client is only supported on non-server OSes:
The option to install KAM on a server is not available in Kaseya 9.2 It won't even let you try. I can't speak to 9.3, we're not on it just yet.
9.3 here. We trialed it on 3 terminal servers and it ground them to a halt. Had to remove KAM in safe mode to get them to work again. This is a huge red flag because we need antimalware and antivirus on our terminal servers. We currently have Symantec which does both.
I don't think Malwarebytes is supported on terminal servers, see: forums.malwarebytes.org/.../161100-managed-node-causing-terminal-server-2008-r2-to-crash