Hey Guys
I'm trying to deploy a Windows Store App for a Windows 10 (x64) Client with my SCCM 2012 R2 Configuration Manager SP1 (Version: 5.00.8239.1000) but unfortunately, It's not able to find the refferenced Client which has the App installed already:

I am able to connect to the Machine remotely over the Configuration Manager otherwise.
What can I do to solve this issue?
Thanks for your help.
Cheers,
Gabe