New Post: Show-InstallationWelcome CloseApps is failing

I tested with version 3.5.0 but this issue is still there :-(

This command is working:
Show-InstallationWelcome -PersistPrompt -AllowDefer -DeferTimes 3
or
Show-InstallationWelcome -CloseApps "iexplore" -PersistPrompt -CloseAppsCountdown "3600" -AllowDefer -DeferTimes 3

This command is failing:
Show-InstallationWelcome -CloseApps "iexplore,onenote,notes" -PersistPrompt -CloseAppsCountdown "3600" -AllowDefer -DeferTimes 3

So when the -CloseApps contains more then 1 application the follow up line "Show-InstallationRestartPrompt -Countdownseconds 60 -CountdownNoHideSeconds 30" is failing.

Any idea why and can it be solved ?