Mute Feature Not Working

I have nearly everyone I follow on Mute. But, after this most recent update, I have a few people that Im still getting notifications from despite having them muted. Please fix. Also, itd be great if there was a back option when looking through peoples follower lists. Other than that, the app is nearly flawless.

Krystal Meth about Periscope Live Video Streaming, v1.5