Board Thread:Roblox help and discussion/@comment-32884340-20181208153147/@comment-35998649-20181208200706

Idk about the audio, but as for the free models:

People were stealing popular models and injecting "malicious" scripts/backdoors into them (most were just messing with studio like this, this,  this, and this). I think this was a fix for the issue? dunno