Photoshop CC 2017 and Citrix XenDesktop with AppDisks

Hello,

I'm trying to install Photoshop CC 2017 in our Citrix XenDesktop enviroment with the AppDisks-Feature (similar to VMware's App Volumes/AppStacks. We use non-persistent virtual desktops.

For packaging we used Adobe Creative Cloud Packager and created a msi/Setup.exe-package with Photoshop CC 2017 (Creative Cloud for Teams). After installing the Master-Image/AppDisks with the package, deploy the XenDesktop with AppDisks, logging in to Creative Cloud and starting Photoshop, we get the error:

"The com.adobe.preview.loader extension could not be loaded because it was not properly signed.".

The common workaround described here: Photoshop com.adobe.preview.loader extension could not be loaded is not applicable in a XenDesktop Enviroment.

Who can give use a hint, how to install Photoshop CC correctly in a non-persistent desktop enviroment?