I have been using the QMS API for a while now, and have previously been able to grab tasks with GetDocumentTask fine. For some reason yesterday GetDocumentTask started returning null on a server, I am able to connect to the server and generate a QMSClient object through that server, I am also able to generate a servicekey and functions such as GetServices and GetTasks work fine. For whatever reason when trying to generate a DocumentTask object with the GetDocumentTask function using an ID from one of the tasks in the list (GetTasks) and DocumentTaskScope.All, the method returns null. I have successfully accomplished this in the exact same way before, and it suddenly quit working.
The log inside the QlikView server reports this:
20160809T123538.553-0700 Error GetDocumentTask failed: Specified argument was out of the range of valid values.
I cannot figure out what has happened, all the qlikview services are started on the server, I also tried rebooting the server with no success. Any ideas?
Code, successfully getting task infos, but failing to getdocumenttask (returns null)