Default [Q] LG P700 slimkat 4.4.2 bug (?) with headphones

I dont know if Im supposed to post this here but as a new member I cant post in the topic.Anyway, I recently flashed slimkat rom and I just noticed a bug.. I pluged my headphones while on a call and the mic deactivated so I could just hear but no that a bug? anyone else noticed it? I dont think im supposed to have headphones with mic to make calls cause with stock rom I didnt have tis problem..Thanks in advance!