1.2.1 has a frame rate problem with adaptive VSync "2" have the same issue on both Pokémon and Ghostbusters 1.2.1. going back to 1.2.0 and it's fine rock solid 60fps.
1.2.1 frame rate jumps all over the place 300fps one second then 50fps the next. Really broken for me, but previous version is fine
Double checked and all the setting are exactly the same.