Answer 1: Yes, i mean even if the computer is shutdown(with PSU connected), numpad light stays on and other part lights is off.
Answer 2: I dont know, because I updated before using the product.
Answer 3: Yes, keyboard FW update in device page and the items in update center all up to date.
Answer 4: Yes it still occur after update. i dont have connected to other computer because sometimes it happens sometimes it doesn't happen I can't wait for it.
Answer 5: Yes, i share it(my keyboard FW update and update center page) in this message.
Answer 6: My OS build is 22000.434.
Answer 7: I share you my serial number via PM.
Answer 8: Youre wellcome.
PS: There is a new update today and I just updated it. I will follow up, and let you know if the problem repeats.