Oh that makes a lot of sense, my license key does fail when I try and put it into a JSON validator. That explains why systemlink doesn't work, thank you so much!
I think I'll go with your original suggestion and just convert it on the Labview side, doesn't look like I have much choice.
Thank you for your response! So it looks like I was doomed from the start. I did notice that difference in string length but I never knew why. Thank you so much for all your help, looks like I'll have to convert it to some other format before sending it.