Hey @witty-jelly-95845, thanks for all of your valuable feedback!
1. This issue you're facing wrt the questionnaire might have been due to Thinkific glitching at the time you were taking the course. I just went through the course right now and am able to see the questionnaire at the end of the survey.
2. Reg. being unable to change the speed of the presentation bit, we are trying out a slightly different thing with the course that allows us to keep updating the content as soon as newer versions with breaking changes are released. So this is an audio-only presentations mode and doesn't have an actual video like the previous courses, which is why you're unable to change the speed.
FWIW, I'll be checking with others reg. #1 too if it is similar UX and taking the feedback to Thinkific regarding the glitch.