This 100% seems like a software problem that Ford Engineers have to correct!!! In the meantime, I unplugged my rear microphone (1 of 3). This is located just above the cargo area in the back. The problem seems to be gone!!! Although, I'm sure the ANC is not operable anymore but honestly, I can't tell the difference!! And, my voice SYC still works from the front microphone above my driver's visor. Please, anyone else who wants to try this, get back to me and let me know if it corrected your problem as well!!