Student can't see chat features in BigBlueButton conference

Community Novice

I use BigBlueButton conferences for my virtual classes.

I have one student who can't see any chat features on the left side of the screen. I thought she might just need to click "Public Chat," but there was nothing there. She shared her screen so that I could confirm. She said this was on her laptop, but I don't have any further details at the moment.

Any idea what's going?