...which is disappointing because one of the reasons I paid extra for the Note 10 was the small tip on the SPen for playing my games. Is there a fix for this? Or do I just have to keep my old stylus around for playing those games that my Spen won't register on and I don't want to use my finger on?
None of those steps made any difference. It's as if the touch screen is not registering the touch of the stylus tip to the screen when I try to play those particular games. My traditional stylus or finger registers on the touch screen, but not the nib of the SPen. When I back out of those games, it works just fine. But every time I go back into those particular games, it doesn't work.
You would need to speak to the developers of those particular games. If the S-Pen works correctly with other games and with the phone functions it would be on the app developers to provide the compatibility for the S-Pen.