Metadata Card - Set Employee property automatically from the creator information

I have a property Employee which uses the built-in list Users.

Now I would like to have that when new object is created, the Employee comes automatically from the creator of the object.

I have added the information into the Metadata card like the information below but it still does not give the value automatically.

Also I have tried the setting where ForceSetValue is true but it does not work either.

What is wrong with this?

{ "Group": "XXX", "Property": "1482", "Priority": 500, "SetValue": { "Mode": "Dynamic", "DynamicValue": "%CURRENT_USER%" }, "ForceSetValue": false }