Dark Chest After Update

Please Note: this bug will not affect gameplay I only reported it because it is a bug

I was playing in 0.7.3 and I placed a double chest. Then I updated to 0.7.4 and when I went to play my world agin and the chest was dark blackish. Then I placed a new chest and it was the normal color.

See screen shot for more referance

Again this bug does NOT affect gameplay I found the bug and so I reported it.