I have lessened the effect to a great extent, and to be specific, this was only happening when the video WAS the scene, i.e. I have an initial scene that has a button triggered to take me to the next scene which only contains a video; any other controls that appear in that scene are on an Experience Layer.
Instead of setting the video as the background of the scene, I’ve taken the first frame of the video and saved it as a JPEG, and made that the background instead. I have the video in a layer of the scene set to start playing at 0.1 sec. This gives it the appearance that it plays just after the transition ends and removes the appearance of a “false start”. It is important to actually grab the first frame of the video itself and not a screenshot, as these will look like they have different color profiles. I hope this helps resolve the issue. If not, let me know what’s happening after you tried it this way and I’ll see if I might have any other suggestions based on what you’re seeing.