So this had been working fine until this April. This April never populated. I tried a ton of things. I can pretty much see what the problem is but I don't know how to fix it.
I started collecting data in March of last year so by using the example in belchertowns document, which as I type this I'm now wondering if I shouldn't be asking belchertown but I've come this far so why not finish. I used the example given in the documents and I came up with this.

Only modified the start and finish date to match when I started collecting data.
It's kind of obvious looking at it that it would stop this April but again like I said, I can't figure out how to change it so that it shows the last 12 months continually as the months go on.