I have recently bought the WH-1000MX4 headphones.  I use these to connect to my laptop for Zoom meetings.  I have had multiple random disconnections where I hear a tone in my ear and then the other people on the call can still hear me but I cannot hear them.  I have also had people tell me that my mic is still working but sound level has dropped significantly.  If I speak louder it seems to resolve the issue.  Is anyone else experiencing this behaviour?  Considering sending them back as cannot be relied on.