There exists a bug in Himno wherein you might enter a district with two warp stones. One of these is glitched, the other is not. Picking up the first warp stone in a level will make it look like you have three. Picking up the other one will still make it look like you have three.

I would like clarification on whether or not having this glitch is permitted, as I assume it's not, but sometimes it is hard to know whether or not that one gem is a glitched gem, especially in 100% 100 district.

For the 100% runs, it is implied that all things are achieved. I will have to decline the glitch, but thank you for bringing this to my attention.