when searching for venues (intent \"browse\", southwest and northeast provided) I receive the following error:
Invalid geo coordinates (0.400000,0.000000)
Since your coordinates are even not assigned to a country, this coordinates are not valid. Try using coordinates on dry land.
This is intended behavior. The vast majority of cases where people send us 0.00 as a lat/long coordinate, it's because of some programming error/mistake, with an uninitialized variable, for example.
So, we return an error, so it's easier to find the mistake, rather than silently returning little-to-no results. If you send 0.00001, it will be treated as perfectly valid, and refer to essentially the same location.