Mike:
We had similar issues some time ago when moving to Server 2012.
One way to deal with it (which the sysamins won't like) is to disable SMB2/SMB3.
https://support.microsoft.com/en-us/kb/2696547
(this was just the first i found, there are many places that explain how to do it via the Registry).
The other is to write your own function that flush buffers so they're visible right away to ADS
after you write/append or create new tables.