I have the exact same issue, was playing earlier, never shut off my computer, nothing changed for any reason and now it's shaking the moment I start a song. Tried to restart my computer thinking something was bugging out, no change. I turned off highway shake on misses and tried again. The highway did a weird flip at the start of the song and then I seemed to be okay? but I'd also rather have shake on miss on.
Edit: Hey so I went, maybe this is an april fools thing and looked that up. It is apparently that's built in https://www.reddit.com/r/CloneHero/comments/b80cki/is_the_new_build_an_april_fools_joke/