WTF - Now my 16-inch 2021 MBP doesn't charge from any of the USB-C ports? I've tried 2 chargers that I know work and 2 different USB cables. When you plug the charger in nothing happens, not even the beep. I had to dig out my 140w charger that came with the MBP to charge it. The original charger also now seems a little flaky. The light on the MagSafe connector will drop off sometimes for a few seconds. This happened after the upgrade to 12.4???