Loading script blockappexecutionmessage.vbs failed (Access is denied)

I am currently using the -BlockExecution in a Show-INstallationWelcome function, but whilst installation is going on, I am prompted with this, even through the installation carries on.

image

Can someone please help getting rid of this?
Thanks

Hello,

this is probably related to https://github.com/PSAppDeployToolkit/PSAppDeployToolkit/issues/526
For now try changing TempPath in the config xml