Node outputs as string instead of object

[L-P-G]

when trying to manipulate the output from the node most of the nodes can't pick up the output because it's formatted as a string instead of an object. Usually the output is loaded to msg.payload, instead this is what comes out.

[stokes776]

I get a similar behavior with the 'Azure IoT Hub' module, when it stops working randomly. I would expect a msg.payload = "error message here", but instead I get msg as a string which is proving difficult for me to catch and handle properly.