This might be a question for a support ticket.. where you can share more
details about what your api calls are and they can do some debugging on
what is happening. Also, have you tried using API 2.0? I know that the
2.0 API is used to build out the workspace reports, so in theory
anything you can build there, you should be able to use as an API call
(if you enable debugging it will even give you all the API calls). Good
luck sorting this out.