Created Unassigned: Issue with SSIS List Data source adapter with Always On Availability Group [20777]

When I try to run the package on SSIS configured to run on an Always On Availability group instance, the package fails with the following error:

```
Data Flow Task:Error: System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.SharePoint.Client,
Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The system cannot find the
file specified.
File name: 'Microsoft.SharePoint.Client, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c'
at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.HandleUserException(Exception e)
at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.PrimeOutput(Int32 outputs, Int32[] outputIDs, PipelineBuffer[] buffers)
at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostPrimeOutput(IDTSManagedComponentWrapper100 wrapper,
Int32 outputs, Int32[] outputIDs, IDTSBuffer100[] buffers, IntPtr ppBufferWirePacket)
```

I verified that the are present at SharePoint 15\ISAPI folder.