For both version 0.5.2 and 0.5.1, my mic works fine in these 2 modes since I don't use Twitch (Standard Gameshow, Freestyle Dub Mode). Only the Dub Mode does not work, and I can record and hear myself in the Mic Test. It worked fine for me in Dub Mode on July 9th and earlier on July 27. But later that day it didn't work anymore and has continued until now.
P.S: Actually, if I had recorded lines then at the end of Dub Mode I can hear it. But during the recording, playing back your voice does not work.