[CyanogenMod] Microphone not working when earpiece is plugged in topic

Hello. I have a T-mobile Galaxy S 5. Recently I tried CyanogenMod 12.1 and several derivatives (such as Resurrection Mix). All share the same problem: during a call, if I plug in a earpiece without a microphone, the microphone in the phone will not work. The other side can't hear me. I can hear the other side though. If I instead plug in a earpiece with microphone (like the one from the phone), everything works. Or if I turn the speaker on from the phone app, the phone's microphone also works.

I remember when I was using the Samsung TouchWiz there is no such problem. Is this a known issue of CyanogenMod? Is there any ticket tracking this issue? Is there simple way to fix?

Thanks!