commenting on facebook live videos

iOS & iPadOS

Hey guys
When my friends go live, I used to be able to comment, but now I can't. Instead, every time I try, I keep getting a popup about casting to a tv, and even when I hit the close button, seconds later it pops up again. Any ideas to get around this? If not, I hope this gets fixed. It's anoying not being able to comment while the video is going on