We have tile caches for five services on our existing arcgis server 10.0. I'm trying to get a new 10.4 server online, using the Esri ArcGIS 10.4 for Server with SQL Server Express AMI in AWS. I've taken a snapshot of the volume holding our existing tile caches and attached it to the new 10.4 server. I've configured our gdb and services, which work fine. But when I point the services to the tile caches, it doesn't work as expected. The service either does not recognize the tile cache, or sees it but hangs when you try to access the service. We've used this approach in the past with our 10.0 servers, so I was expecting it to work the same way when moving to 10.4, but I didn't see anything about how to import an existing tile cache into a new 10.4 server installation. I did update the ntfs permissions on the volume and these are compact tile caches. I'd like to avoid re-creating the tile caches if possible (~200GB worth). Any suggestions?