charging – Why is my MacBook charger connecting and disconnecting quickly?

I’ve been utilizing the unique Apple 140W energy adapter and MagSafe 3 cable that got here with my MacBook Professional 16-inch (M1, 2021) for about two years with none points. Nevertheless, beginning a few days in the past (after updating to macOS Sequoia 15.6), I observed an issue:

1. After I use the MagSafe 3 cable with the unique 140W energy adapter, the charger retains connecting and disconnecting repeatedly.
2. I hear the charging notification sound each few seconds.
3. The MagSafe indicator gentle retains blinking as a substitute of staying strong.

Right here’s what I’ve tried and noticed:

• If I exploit an Apple-issued USB-C to USB-C cable (got here with an iPhone) with the 140W adapter and join it to a Thunderbolt 4 port, the MacBook costs with out points.
• If I exploit the unique MagSafe 3 cable with a third-party adapter, the laptop computer additionally costs superb.
• The difficulty solely occurs after I use the Apple 140W adapter and the unique MagSafe 3 cable collectively (the precise mixture that labored completely for two years).

This began occurring simply a few days in the past, across the time of a current macOS replace (Sequoia 15.6). May this be associated to the replace, or is it possible a {hardware} difficulty with both the adapter or the cable?

Has anybody else skilled this?