Global Session ArrayLists stop registering Number variables added to the List

[vvvami]

I tried implementing arrays with values of both string and number.

The strings register just fine, but its the numbers that just don't get through for some reason.

This is my method of writing it in the JSON file, if the issue may lie on my part - though I've checked it tens of times and can't seem to find a flaw in my code. When I used local variables to define the numerical values instead, it worked just fine (like so):