When placing one of the new butterfly pack a visible green cubicle remains. Another effect is that you see giant green cubicles all over the POT (In this case Soryn Fields). Went to another POT (St Mart Factorum) and saw there the same effect although I did not place anything there. The NPC town Resolute did not show this effect. Logging out and back in makes this effect disappear but can not remove the butterflies. Then placed the butterflies back and it all happens again... I took screenshots of it but have no idea how to place them here.