Can not get results for SearchBirdseyePositions

I am using C# and have gotten the example to work. When I added a SearchBirdseyePositions query, all I get is a “no result” exception. I’ve tried the example queries and one like below.

ArrayOfTrackExStruct r1 = df.SearchBirdseyePositions(“{range lat 32 33} {range lon -96 -97}”, false, 15, 0);

Can anyone provide suggestions?

Thanks

Have you tried reversing the order of the negative values in the “{range lon -96 -97}” term? If I recall, the first term must be the lower end of the boundary range. X < lon < Y.