Stub Files Disappear - Moved Files 0 KB in Size

We've implemented DX on our main home server a few weeks ago. We've been conservative in our approach and currently are only scanning and moving on Sundays. Our move rules only move files whose last written to date is > 4 years. This has been successful thus far. We've freed up close to 100GB of storage and when we get down to adjusting the rules to moving files with a last written to date of >14 months we expect a big payoff.

We are having a Sev 1 issue (a case is currently open w/ EMC) our files that have been scanned and moved (those that up till now were stub files) can't be opened. Symptoms are the following:

-file appears to exist
-size of moved files are 0 KB
-opening these files yields a blank file (bet it a .doc, .xls, .mdb, etc)
-the target symbol in the bottom left hand corner no longer exists

I've done the following:

-stopped/started the service
-confirmed the data exists on the 2nd tier storage (using NAS)

What can be going on here? We have NOT changed anything in our environment. The last entry in the event viewer was on Monday evening stating that a file was fetched from 2nd tier storage. Nothing since then other than when I restarted the service earlier.

What could possibly be going on here?