They do not need to be level 50 to check; I use Pokemon from Victory Road and have no problem (They're usually 37-40). Your problem is elsewhere. Can you list all the info you have in your DS Parameters window?
Afterwards I decided to increase the ranges (I've tried it before but I got a result this time).
Would the second one be my stats that I put into the RNG reporter?
It just seems strange that my GxStat isn't 6.