I have been experiencing the same issue - exactly It is not the request because after a series of attempts I get the proper response This happens with every type of call (PUT, POST, GET, etc.) Just a simple GET for my list of five campaigns will return this error every call for half an hour or more then the next attempt it returns the list properly. It will then work for a while and then revert back to the HTTP 401 UnauthorizedException This is all with the exact same code and call each time Also, it will sometimes return an internal server error and do that for up to half an hour
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