Sony a7V Focusing Errors with Some Lenses: Explained

It finally happened, after a long weekend of shooting with the Sony a7V and both Viltrox and Sony lenses, the purple autofocus error flashed on screen and rendered the camera inoperable for a few power cycles. This issue is similar to one reported when using third-party lenses, but it was the first time I experienced it with Sonys own lenses. Is this evidence of a bigger issue with the release of Sonys new entry-level camera?