I'm not sure if I'm doing them wrong, or what, but it is extremely difficult to find people for these quests. Because of this, I tried to help someone with a quest that I had already completed. It seemed to work at first, since it allowed her to pick up the egg as long as I wore the right cap, we discovered that I could not see or interact with the other egg. We tried to have her turn in the egg she has and then mosey on back down to take the other one after switching hats, but the egg suddenly disappeared for her too.

Is it an absolute requirement that the person doing the Hatching-Tide quest with you has to be on the EXACT same quest as you? Or did I do this wrong somehow?