There are a lot.
(1) It is now suffering from Alzheimer's. It forgets the stored credentials.
(2) There was a issue observed around windows 7 era, has come again. When Nvidia GPUs draws absolute minimum power due to minimal gpu intensive workload, the windows kernel decodes the same as the gpu driver isn't functioning properly. Then it restarts the graphics drivers. For that you will see 2-3 seconds long black screen. Then it is resumed automatically.
And many more to observe..