A bug on mystery island

[TonyPearce 13]

The brothers of Imaginarium island, when I place the brick I somehow open free placing mode by mistake, and now it won't let me finished it.And I can't take things back, what should I do now?

BTW this map seems to have some strange bug, and now I have no point to reset it again...

[TonyPearce 13]

I reset this map last time I triggered a bug, maybe this time I shall wait until it got fixed?

[TonyPearce 13]

Another thing is that some bricks can't be deconstruct, why?

[TonyPearce 13]

Well, this bug won't let me can't finish the mystery, another strange thing.