With the small screen view, two small icons at the bottom do not have a green highlight on mouse over (play queue and shuffle). The icon on the left does not toggle between repeat, shuffle, etc.

Thanks for the report! I can't seem to reproduce the issue, it works for me on both my cellphone (Android) and my computer browser (Chrome). Check the attached video:
Kapture 2020-08-19 at 17.14.01.mp4.zip
Maybe I didn't understand what the issue is?
It works on my cellphone (iPhone), but not on my computers browser: Safarie Chromium or Firefox 馃
Enregistrement de l鈥檈虂cran.mov.zip
Ok, I was able to reproduce it. It is a bug in the upstream react-player. You can check their demo site: https://www.lijinke.cn/react-music-player/
I'll open an issue there, and link it to this one
Fixed in 900337081bc94698307e0b555fc99c1c09d7d760