AeroAPI Position Endpoint Returns No Data

[MatthewHarvie]

I am trying to get data using the /flights/{id}/position endpoint. When I enter the aircraft id ‘QTR10-1722326653-schedule-87p’ on flightAware.com, the data is correctly returned:

I am trying to replicate this data in code using the endpoint:

However no data is returned:

Is the syntax incorrect?