Hi Nicholas,
It's not the date format. It is the setVariableValueExt function that brakes the application in 1.6 This function is not breaking the application if you would set the function in the "On Variable Initialization" property. Anywhere else it breaks the application.
BTW: you don't need to reload the datasource, as it reloads itself when a new variable value is sent to the universe.
PS: Design Studio 1.5 to 1.6 upgrade error
Regards,
Bogdan