...little purple seed-like things falling around the purple flower and the cemetery? If so what are they?

...had the silver mirror event and the person got a twin? I have.

...tried getting their children to pick a certain pebble and everytime it either disappears or the child drops it?

...had a new collectible not show on the collectible screen after the child pick it up and brought it to the research hut?

It may just be me?