Problem with collapsing buildings...

So, I was on the MOLE server earlier, and someone was building a giant blob to collapse on the other team; this was at least the second time (might have been more, but I wasn't on the server then).
After connecting it to the top, breaking that connection, and breaking ALL connections, it still wouldn't collapse. No editor was used at all, as the only person on with that power was Beef, and he said he didn't do anything to it. I attached the screenshot. Anyone else having stuff not collapse that should?

Edit: Just in case you ask, no there are no blocks under the mouse pointer :p
Also, mods please move this if it would belong in a better forum.

 

Have another one from the MOLE server.



I'm not sure if it was a glitch or something, but it did fall later after they took out the top half themselves.
I don't think any mods were on either.

 

Once an amount of blocks is reached, an entity becomes "uncollapseable" and actually holds things up. Otherwise dirt would be liable to collapsing.

 

That would explain it.
Funny seeing gigantic walls float though! :D

 

So on planet KAG, the heavier stuff gets, the lighter it becomes... seems legit! :p

Balloons FTW.

 

IT CREATES ITS OWN GRAVITY WELL

 

I was thinking that those little black dots at the top were to blame for it, since tiles placed along the top of the map are uncollapsable.

 

That's what we thought too, but when we destroyed the blocks connecting them, nothing happened.

 

"Bye bye red ass hole team" *sigh*