I have had this problem 2 times. It freezed mid print. Nothing I could do to fix it on the spot. I had to turn it off and on again. I searched online and the only thing I could find was a post that said it could be a problem with the network connection. They recommended to print from the SD and not go transfer it from the PC to the printer. But I also use the bambu handy app. So far I haven’t had the problem again. But every time I start a long print, i’m stressfull 