Hi! Theres a bug preventing me from progressing, in the clam where you have to replicate the sound.. I am following the exact colours, green blue pink yellow pink blue green but it is not opening.
Hey! The sequence you wrote is correct. Try hitting a different color than green before you start the correct sequence you described. It's possible the sequence got somehow tangled if you've only been trying the correct order over and over, and it needs a proper reset by hitting a wrong one right off the bat.
Try hitting a blue one first, once or twice. Then go back to green and do the proper sequence from start to finish.
Edit: In case this doesn't fix the issue, loading a previous save could also do the trick. We haven't received any reports of this part bugging out for anyone. It might be some sort of rare bug, and chances are it won't appear again if you reload.