Oh allow me to clarify. When you make a mistake, it plays an error haptic, and then repeats the sequence. As soon as you feel the error, there is no use in continuing to tap on the screen, because the entire sequence must be correct in order to move on. Therefore as soon as you feel the error haptic, you can stop tapping, and then focus on the sequence being played again to hopefully see why your timing was off.
I hope this helps! Once again visiting the help screen (?) at the top right when you launch the app after closing it from the background will give a in depth tutorial. Happy playing!!