RumbleStats templates

Hmm, what do you enter to use RumbleStats? The way I use it, I do get the MediaWiki template format like you had there. I put in this in double braces: subst:rumblestats:roborumble|voidious.Diamond 1.2.3

I do that as well, with an added |GTStats at the end. I always just do a copy-paste from Template:GTStats. I do another subst: the next time I make changes to leave the rendered text only. For some reason it showed up correctly in the page when I submitted it, but when I reloaded a bit later it showed the scores as 0. Perhaps VoidBot reached it's rumble quota?