Can't map with Sensorly?

Does anyone here use Sensorly? I did not have luck mapping with Verizon on my G3, and can't on my G4 either, however when I use a T-Mobile SIM it maps just fine. Looking at the below screenshot, it appears that Sensorly can't figure out what carrier is being used, because when I use a T-Mobile SIM the carrier info shows T-Mobile. I'm wondering if this is an LG thing, or if I'm the only one. I did have an S6 for a week and that also worked just fine with Verizon.