Hi, there are Image1 and Image2 parameters that seem to be missing from your text string, they should at least be blank if not using an image but seem to be completely removed? For example, like this:
["{\"Image1\":\"\",\"Image2\":\"\",\"Map\":\"5\",\"DisplayTime\":\"600\",\"Global Data Key\":\"\",\"Global Data Info\":\"\"}"]
I am not sure how you got the above code without the image1/image2 parameters, if you are editing the json text directly I would discourage you from doing so as it is very easy to introduce user error that way.