I've been actively testing WVD since it's preview release and this past weekend the host machines began reporting more active sessions than there actually were.
Get-RdsUserSession reports a single active connection:

Get-RdsSessionHost reports 3 active sessions:

As a result new connection requests are being rejected because the WVD Hosts think they are at max active sessions.
Again, this only started happening this weekend.
Any insight is greatly appreciated.