Paintbrush bug PS3 version?

[Post New]by AnotherTopName on Oct 19, 14 6:01 AM
At the top of the cliff, next to the pulley there's a paintbrush. Apparently I need this to clean the stone tablet and reveal the diagram. But although the paintbrush is there I can't get it! Can't click it, interact with it, nothing.

Is this a bug (as I suspect) or has the game been tweaked a little for PS3?

Without the diagram I can't progress and the game is effectively over!

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