Game switch to mirror while playing ?

[noname219]

Okay, this was extremely weird. While I was playing The Party's Starting on r^3, I had the impression that mirror got activated midway through the song.

It went so fast, I didn't understand at first what happened. It didn't felt like a lag spike, I'm usually able to compensate that sort of thing. This time, the notes just didn't made any sense at all, like they were randomly moved around in a fraction of a second.

I didn't save the results screen but I saved the replay, it doesn't show anything abnormal. It was just after the 12th notes jack-sequence.

I wasn't playing on the computer I used to play normally. It was on an Apple laptop.

I don't know if it's related too, but on one song earlier today (same computer), I kept getting at least 1 good on one of the first 3 notes. I restarted at least 20 times and the result was always the same.