How long have you owned it? I think it has more to do with the county property tax assessor being up to date since that's what OnX goes by on private property. My neighboring property stayed listed under the same owner for ten years after he was dead. Property changed hands three times but the county map showed the same as OnX with him still owning it. Once the county map finally updated, so did OnX to the current owner. Didn't matter to me because I knew, but still, it'd be nice to have up to date information at least every six months.