For a given COOKIE, when I call "getLead", a result is successfully returned for a person, who happens to have a Marketo ID of "1411625".
However, when I call "getLeadActivity" via the very same COOKIE, no lead activity is returned.
Yet, if I swtich my "getLeadActivity" to an API call based on a key type of "IDNUM", and paste the very same ID number above which was returned from the very same COOKIE, I then do get results successfully.
So there appears to be something wrong with COOKIE-based calls to the "getLeadActivity" method.
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