Invisible Block bug?

So i'm ripping down my block swapper, since it is now broke as of 1.3.2, and this happens:

Has this happened to anybody else? Also, i've changed my skin but it seems like it doesn't file through to the skin server. It doesn't change

Now I know what it is! The air blocks are registering as actual blocks. I don't know why. I have no mods installed.

It only happens where my pistons used to be :s

It's called block X with something to do with pistons, your stuck with it can't deleted in any way.

Yup, it's the annoying piston bug. :/ There's a thread about it, search for "Block X" and you'll find it.

Your piston is still there, i have had them disapear like this and return. Its a bug in the game!

You mean by i'm stuck with it....those blocks will be there forever? *Gulp*

OHYUS I am in that photo! I feel so famous! Who saw that before me!

Lawl.

Sometimes they come back! Mine disappeared like that for a day, but then they reappeared.