So i have 2 of resonance gems but im missing one and its from Nchardak... problem is i already went through there in the MQ and when i went to return there to get the 3rd that i missed somehow, i could not get back in.. says lack the required item. I didn't grab the cubes when i left the first time..so does this mean i cant finish the Kagrumez quest? or is there some way back in?

The cubes are where you left them, just take them all out.

wait nvm the door was bugged went back again now its open .. thanks anyway