video recording not toggling between speakers?

Hi everybody. 

I've been using the free version of Zoom for about a year now to record my podcast and have been very happy with the results, but for some reason, my last session before I upgraded, I noticed after the session processed, that the video only recorded my guest and not toggle between us as we spoke, like it normally would. I haven't changed any settings and have tried it again since upgrading and changing some settings, and it's still doing it. Anyone have any pointers? Thank you.