Zello exhibiting strange behavior

Hi all, I have been using Zello for a while now. I recently updated to the latest version like I'm sure all of you have done, it's pretty nice! I got on Zello a little bit ago and went into the Applevis channel. I waited a while, knowing there aren't people on this channel 24 7. After about 10 minutes, no one had said anything, so I asked what the conversation was about. Still, I got no response. When I checked the history though, it showed the messages I had sent and also the ones from people who had sent something after me. None of there messages had anything to do with what I had said. I tried a few more times and still got the same results. I checked my echo channel and there too what I had sent appeared in the history and I could listen to it there, but it never came back and played when I sent it. I decided to take the app out of the app switcher and re open it. This didn't do anything to fix my problem. I then decided to tsee if I was in solo mode in any of my other channnels, and I wasn't. I can recieve the notifications when someone sends a message, I just can't hear the conversation, and apparently no one can hear me either. This has never happened before and I really enjoy using zello. If anyone has an idea on how to fix this, please let me know!! Thanks so much, Holly