Trying to investigate the broken Start Menu problem.
Most PC's are effected, mostly as soon as users start to roam.

Investigation has led me to think it has to do with rights for "All Application Packages"

I have tried, repairing the Start Menu with attached powershell :

Only :
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
Does not reregister the apps in the user account.

Which has led me to the following item :

I use ZCM 2017, but have no idea on how to fix this.
Can anyone shine some light on this and how you have tackled this problem ?