Help - My villager dropped the piece of gong from the mosaic and I have tried closing and opening the game and makimg them go to the mosaic but still cant get the gong piece. It is the last thing I have to do

You have forgotten a thing you might have to do again - with the totem...

I have notified the moderator because this topic contains a spoiler and should therefore be tagged with it.

Hope my hint will help you.

Close then reopen the program.