JS dynamic dropdowns - one works, one doesn't
Not WA Dynamic Dropdowns which I don't think are still supported, but I have used another option I found. It obviously does work, as I have one instance of it working in a page, but not another, and I can't see why. Hopefully just me being blind from looking at it too much, and had it every which way except the right way.
I have attached the relevant files etc below.