Still nothing.
This is on the latest build that came out the other day as well.
Wow! That is not good!
I did a little more searching and came across this solution which worked for the Insider Hub:
1. Press Windows + X, click on Command prompt (admin).
2. Copy and paste the below command in the prompt and press enter.
powershell -ExecutionPolicy Unrestricted Add-AppxPackage -DisableDevelopmentMode -Register $Env:SystemRoot\ImmersiveControlPanel\AppxManifest.xml
3. Now on the same prompt type PowerShell and press enter.
4. Copy and paste the below command in the prompt and press enter.
Get-AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
Hope it helps..