I upgraded to 5.2.2 and suddenly DTMF stopped working. I switch to a live remote (STL Link) and during the live broadcast I set an event in RadioBoss to load the next playlist. When the live remote ends (always varying times...a church service) I have a DTMF event set to start the play of the playlist...which worked great until I upgraded. I then upgraded to 5.2.3 hoping it would fix it but no joy...it's as if RadioBoss never hears the tone.