The bug

MC-269359 was marked as fixed, however it still remains for two of the mentioned banner patterns.

How to reproduce

Create banners using these patterns.

Expected results

The front faces have lighter shading on the bricks on the bottom rows and right columns, and the lighter shading on the skull is more prevalent on the left. Therefore, on the reverse, the bricks should be lighter on the bottom row and left column, and the lighter shading on the skull would be more prevalent on the right.

Actual results

This does not happen - the lighter shading on the bricks on the reverse is still on the right column, and the reverse of the skull still has shading biased to the right.