Hello @GregoryMach ...
I am not sure of an answer for you, but I would like to bring @ffdixon into this conversation in hopes that he will be able to help answer your question.
I also tried looking at the Student View in my own course, and I was able to see the "BigBlueButton" course navigation button just fine. The only thing you might want to check is if you see a crossed-out eye icon next to the "BigBlueButton" course navigation button in your instructor view. If this is the case, then you'll want to enable the button using this Guide:
How do I manage Course Navigation links?
If the button is already enabled, though, then maybe Fred has some other suggestions for you. Good luck!