same issue here, new m1 Mac mini. airdrop was working perfectly for a short while then stopped working halfway through doing a task. I was having to download photos to my phone then airdrop them onto the Mac mini because apparently google drive does not work with the new silicon chip either- neither do my 3 printers, keyboard, backup drive, webcam- soooooo many issues!! really wishing I hadn't traded in my intel MacBook Pro for this garbage. I honestly don't understand why the m1s were released when the world was clearly not ready for them.