This has probably been covered before, but I had issues finding an immediate match in a Google search. This is my 2nd HHKB. I don't remember if my first one did the same thing. I think it probably did.
When I wake my computer from sleep, even if I wake it using the HHKB, I've noticed that when I start trying to type on the keyboard it doesn't become response until a few seconds later. This isn't even just immediate after wake up. If I wake up my PC and don't use the keyboard until 5 minutes later the HHKB is not responsive for a few seconds. Is this normal for the HHKB? Running Windows 10 Pro.
Just curious because I don't recall this issue with my FC660C, POK3R, and various other keyboards I've previously owned.