If you move a layer into another layer (I tried a group layer into another group layer) and then undo this the move into the new layer is undoed but the moved layer dissapears from the project!
Hmmm... sure? Curious cause layers movements never has been "undoable" actions... and in fact seems that are ignored by Undo function... Maybe something strange have happened in that exact moment and circumstancies, can you repeat the error when you want? I've tryed but nothing happened , jaja, I mean: