Because there's no PS3 bug report site, I've had to report here.
Anyways, as the summary suggests, if you press L2 on a iron door, it creates the sound of a door opening.
But it doesn't open it.

How to reproduce:
..it's obvious.
1. Place down a iron door
2. Press L2 on it
3. Listen to the sound of a door opening. But without the door opening.

Doing it on 2-player co-op might be required, not sure.

The reason it affects version 1.7.10 is that I had to select one, because..well, let's just say TU14 isn't a selection.