Audio won't render

I just updated to version 4.3.7 on my Intel iMac (MacOS 10.15.6 Catalina) and it's got a few glitches.

1. The notes are starting from a place where they're already halfway down the screen, rather than starting out of frame.

2. The audio won't play if you start it from the beginning, but will play if you jump ahead to the middle.

3. And lastly, the audio isn't rendering when you go to render the video. The video renders (but the notes start halfway down the screen), but no audio at all.

Is this an issue with my settings or is just an issue that will need to be fixed in a subsequent version?