Hey folks, I have a 2016 MX P90DL. Recently, my driver side window has been making a loud rather bothersome grinding noise when trying to lower or raise the window. The window is able to auto lower when opening door and auto lift when closing door to place the window as designed into the molding as long of course the window is fully raised. However, when trying to lower the window I hear what seems to be something grinding inside. Eventually, the window lowers itself and when I try to raise the window I can't get it to raise without it sounding like the glass is being destroyed. Eventually, it fails to raise and eventually lowers itself again. I can't even get to the calibration steps because I can't leave the button pressed to raise it back up without stopping. I literally have to raise it holding to the raise button in half second intervals. Has anyone experience anything like this? I removed the panel thinking that something might be caught inside but to the naked eye I can't see anything that would be obvious and standing out. I believe it may be the regulator assembly or motor that is going bad. Not sure if this is common, I searched but couldn't find much info about it. Most I found was other members just needing to re-learn / calibrate the windows. I made an appointment for later this week at my SC. Thanks in advance for any help.