FYI - Dexcom Share/Follow stopped working about 1-1/2 ~ 2 hrs ago.
I just confirmed with Dexcom Technical Support that the problem is with the Dexcom servers and is not any sort of end-user issue.
No current eta on resolution.
They are aware and are working on it.
Unfortunately my T1D is out of the house at a sleepover so this is kinda crappy timing.