I have a Macbook pro OS Catalina 10.15.4, Firefox, AND NO I do NOT want to use Chrome, Level 1, Rocket Languages Lesson 5.9, Activity:Hear it - Say it = while clicking on the "Play" button I cannot hear what I am supposed to record. Even after recording something I cannot hear what I recorded. While at the same time the activity "Flash Cards" as well as the activity "Write It" and the activity "Know It" is working perfectly fine. Therefore it can only be a bug in your software at this point in the activity "Hear It - Say It”. After trying Chrome it did not work either.

There are obviously ongoing problems with the audio since 2019 as seen on other comments (now while I was doing the certification in Module 5) ) and no one seems to be able or willing to take car of these issues. I am extremely disappointed.