A7RV Autofocus Issues

[Zurotography]

Been using strictly this camera over the last couple of weeks, besides for when I need to shoot birds in flight, and it's been mostly excellent! One major flaw, however, is with the autofocus performance when shooting with the Imaging Edge app. The first image in the sequence is always in focus, and then immediately will either front or back focus by a small amount and never correct itself. Yes, AF-C is on. The A1 never had these issues. 

Example of the issue: https://i.gyazo.com/145e5e8d5e027e91f7329f0a7c6589b4.mp4

Every single sequence tonight was like this. Very unfortunate as this is one of the main reasons I bought the camera in the first place. 400GM was used for all.