R6 Siege Microphone not working?

[EpicSurvivor]

I have near to 700 hours on Rainbow 6 Siege and never had a problem with my Microphone in game. Today I tried to play Siege after putting the Rig back together a few days ago and No one could hear me in game. Yet my microphone works 100% on Discord and In game in RUST.

Any suggestions or ideas what could be causing this? I really would appreciate some help. Its very useful to be able to communicate with your Team on R6 Siege.

Thanks.