What could be the problem with shadowplay crash?

Question

Iron

Good evening. What could be the problem when you record for a long time and minimize the window through tab + alt, you leave for a long time, and when you return the game, shadowplay turns off the recording + then does not record until you restart the laptop. It happened + - 6 months after the purchase, then the hardware and Windows were stock (from the store). I thought the program did not work well, reinstalled it, it did not help. Reinstalled all Nvidia drivers, did not help. I thought Windows was not working well, reinstalled, still problems. I thought there was not enough RAM, I left from 6 GB to 12, still the problems remained. I gave it to clean the laptop from dust and dirt. It didn't help... During this time, I noticed that if you run bandicam in parallel, then shadowplay works perfectly, as if the bandicam is correctly directed by shadowplay, and there may also be artifacts that are visible on the screenshots.

Please explain what could be the problem, I will be very grateful.