I'm experiencing this issue as well as several others. Cutting off the beginning of the songs occurs with streaming and audio files for me. This has been really difficult as a music instructor.
I've also noticed that it doesn't allow scrolling within the track. You can only click where you want it to go on the track timeline.
The issue with having to click somewhere outside of the search box a dozen times to get it to not be highlighted is still not fixed.
Every time I update, there are several original audio tracks, made by either me or students, that get deleted. Or with this new update the track still exists in the library but it is 0 seconds long and trying to play it sends itunes to some type of "autoplay" limbo of silence. Typically forcing me to restart music and sometimes my computer.
A huge one that just started occurring this last week is my mouse cursor dragging songs around, as if I'm holding the left click down. This makes it impossible to do anything else in the music app, and sometimes other apps and functions of the computer. Most of the time this turns into me having to restart my computer.
The combinations of these issues have been a huge impediment in my job. A couple of these issues have been around for multiple OS versions, and at this point I'm really reconsidering continuing to use apple products along with my work.
You don't need to reorganize where the buttons are and rearrange the functions of programs with relatively simple purposes, like playing audio files, every time you release a new version of the OS. Come on apple, this is embarassing, do better.