No issues right? Did you mean with upgrading or actual drone flying. Because there are a few bugs already reported by beta testers.
1. Each time I do touch-to-focus, AE lock warning yellow banner pops up even though I have no AE lock active.
2. Upon panning the gimbal with right wheel on Cendence and stopping suddenly the drone reacts with a massive yaw kick.
3. All lenses in MF change the focus from infinity to close focus all by themselves, potentially and likely ruining each video clip during which this happens.
4. Gimbal Yaw Smoothness in Follow Mode controlls actually aircraft yaw motion responsivnes and it does nothing to gimbal itself. I was hoping that this would control how precisely or loosely would the gimbal follow the aircraft when yawing. That would be actually what it says it does, and very useful tool to have for a smooth cinematic panning when single op.
Those are just a few "little" issues with .300.
And finally FYIO, this FW has absolutely nothing to do with GO4 and the way it looks or how its full screen looks. This version of GO4 has been around for a while independently from beta.300 FW.