Happening to me too! I just got my 15 pro max phone a little over a week ago. I’m on vacation in New Orleans…woke up this morning after using my apple mag safe charger overnight to a black screen!! Woke up my husband after trying everything to figure it out. His 15 (not pro max) was on his Apple MagSafe charger all night and his is fine! We could feel the vibrations on my phone so knew it was on but the screen was pitch black. I ended up doing a reset using the volume up, down and holding power button til it reset and came back on. When is this being fixed?? When we get back home, do I need to go to an Apple Store and exchange this phone now?! Ugghhh. So frustrating.