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I don't know if this is a glitch or not, but whenever I'm playing LET ME SEE YOU DO IT, and after 15-20 seconds in, the game lags out, and misses a few notes even when I'm pressing the correct key(s) at the right time. Is this just me or the game?

Ah, I see. Thank you!

When I'm playing a song (specifically "let me see you do it"), and press a note directly on the arrow, the game counts it as a miss? Is it the game, or just me-