After a long trial and error process of configuration in DEM, I have finally been able to successfully get UWP Apps to provision on non-persistent (instant clone) desktops in my VDI environment. All of the UWP Apps work fine, only now the end users are reporting issues when pinning them to the taskbar. I have observed the following:

When trying to pin a UWP App to the taskbar, the option to pin to the taskbar is not available until after the UWP App has been run once on the profile (using calculator in this example):

After the Calculator App has been run:

After this, I can successfully pin the app to the taskbar.

I have configured a DEM personalization config to retain user pinned taskbar items (I have confirmed it works). When logging out of the session and back in, I'm presented with the following:

Not only does the icon not display, but the app won't even launch when clicked. I have to go back into to windows search, run the calculator UWP from there, and then the icon will populate and launch from the taskbar.

Anyone else experience this behavior from the UWP apps? My DEM config for UWP apps includes the following:

[IncludeFolderTrees]

<LocalAppData>\Packages\

[IncludeRegistryTrees] 

HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts 

HKCU\SOFTWARE\Microsoft\Windows\Shell\Associations

HKCU\Software\Microsoft\Windows\CurrentVersion\ApplicationAssociationToasts

HKCU\Software\Microsoft\Windows\CurrentVersion\CapabilityAccessManager\ConsentStore

HKCU\Software\Classes\ActivatableClasses\Package

HKCU\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel

HKCU\Software\Classes\Extensions\ContractId\Windows.Protocol\PackageId

HKCU\Software\Classes

HKCU\SOFTWARE\Microsoft\Windows\Shell\

HKCU\SOFTWARE\Microsoft\Windows\Shell\BagMRU

HKCU\SOFTWARE\Microsoft\Windows\Shell\Bags\

HKCU\SOFTWARE\Microsoft\Windows\Shell\Bags\1\Desktop

[IncludeIndividualRegistryValues]

HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\UserSignedIn

[ExcludeRegistryTrees]

HKCU\Software\Classes\Local Settings