Possible Render distance issue? I can't see my Relay that is broadcasting 50,000m.

Hello. I've just set up a relay on my server and seem to have a problem. My base antenna is set to 50km and my Relay antenna is set to 50km. The solar panels are all most certainly receiving enough power. However, when I attempt to connect the two, they disconnect after a while. At first I assumed it was running out of solar power. Then I flew up there to check and sure enough, the panels were generating more than enough. I flew back down and just watched it. If I watched it, it would stay in my HUD forever. As soon as I started loading more terrain however, it would disappear.

Does anyone have any suggestions? Here is a screenshot showing the GPS location of where it should be broadcasting. Note, it's not broadcasting and the coordinate shown is just from the GPS.