I have seen this same error half a dozen times since I first posted. Today was the first day that it persisted after rebooting. I rebooted a few times and it stayed there, but it's gone now. It appeared to still work. I had RTK fixed in the open areas and good checks to known positions. Air temperature was near 100°F and the LS was hot as a pistol. I needed to collect and stake some points that were in canopy and it seemed to have more trouble than usual fixing in canopy, but that's kind of subjective. I was at many of these same locations on a hot day about a week ago and it seemed to do better then, but maybe not.
Do I need to send it back? How long does it take to fix? Can I get a loaner in the meantime?