I had some problems with nights 2-5
2 pump didn't work
3 pump also didn't work
4 Fiona didn't appear ever
5 same as 4
I'm not sure if Fiona doesn't appear on later nights if you don't beat previous nights, but when night 3 didn't work I just skipped it to check if there were problems with the other nights, so to sum it up nights 2-5 don't work