No data showing in simulator with swim .fit files - am I doing something wrong?

Hi,

I am trying to test out an idea for a swim data field, but I am falling at the first hurdle because I don't seem to be able to get good data.

What I have done is to export a .fit file from one of my swims on connect.garmin.com and tried to play it back via the simulator.

I _KNOW_ this file has good data as I can see in connect where I've been, how fast, how many strokes, stroke length etc.

_BUT_ the .fit file in simulator only gives me empty values - nothing in speed, distance, stroke length...

Am I doing something wrong?

Is there some other info object I need to query than the one provided in compute(info) ?

Thanks,

G