Having the same issue on PC (chrome), from the looks of it. Version 89.0.4389.114 (Official Build) (64-bit).Works fine on firefox and edge.
Wasn't a fan of this one, I eventually had to turn off the sound as I couldn't handle the constant interrupting rhymes. The last couple of solo content has had this annoying habit of 'speech-bubbles' popping up that get in the way of gameplay, I'd be fine with it if I could keep playing normally while the narrating happened. Also had some problems with outcast not working correctly at times, but that's obviously a bug.