I'm Missing some opals

[KotaKapryk [In green]]

I'm missing two opals in Snow Worries and one in Beyond the Black stump. I've been searching for hours, so is there some sort of glitch?

[KotaKapryk [In green]]

I found the ones in Snow worries they were hidden out of bounds in the underwater cave. there was a magnet power up and as soon as i touched it i collected the opals. this was probably just an oversight by the devs and i hope this can be fixed.

[Mirror Reaper]

Both of those levels have some really difficult to find opals, even if you're using the cheat to show all collectables.

[KotaKapryk [In green]]

yeah i found them. the on beyond the black stump was hidden on the flank of the mountain