UserExit not working

MDT version 6.3.8456.1000 with ADK "Windows 10, version 1903"

I try to use "ModelAliasExit.vbs" from https://github.com/DeploymentResearch/DRFiles/blob/master/Scripts/ModelAliasExit.vbs

customsettings.ini :

[Settings]
Priority=HardwareInfo, Default
Properties=MakeAlias

[HardwareInfo]
UserExit=ModelAliasExit.vbs
MakeAlias=#SetMakeAlias()#

First call to UserExit seems OK, but the call to SetMakeAlias() does not happen:

Any help is appreciated.

Regards,

Nikolaj