Summary:
One of the 4 corners on the top and bottom of the smoker has a single dark brown pixel misplaced to the outer corner of the block while the other three corners has the same color one concentric Square inward.

 Steps to reproduce:

1. Place a smoker.
2. Look at the smoker texture from above and below.

Observed results:
One pixel is out of place, which makes the texture of the bottom and top non-symmetrical.

Expected results:
The pixel in one of the four corners must be in place.

Image:
Bedrock:
Bottom

Top

Java (fixed):
Top