This is the third variant case in Siege, following Starscream's faction symbol flip running change Genuine Siege Starscream running change variant found and the Sports Car Patrol Blackjack sculpt flop variant Possible Siege WFC Blackjack variant found.

It is currently unknown how widespread the issue is. Additionally, it is not a running change, as these are side by side seemingly in the same case.

 

Hmmm...left Twix or right Twix...I'll take the left Twix.

I've only seen these in store once...and can't recall which variation I might have seen. I think they look better in person than in pictures, actually.

 

Agreed.

 

What is the difference?

 

One has a grey faceplate, the other a white one.

 

I prefer the look of the white faceplate, but at my Walmart I could only find the grey

 

It's been discussed here as well:

Boxed 35th Anniversary Siege

 

Was spotted some time ago.....

In addition the 35th Op taken to NYCC had a third faceplate variant which hasn't been found at retail:

Chris on Twitter

 

That is likely a non finished product, as it doesnt have the blue on the windshields, and I see less noticeable lines of the "cel shaded"ness.

 

Prototype perhaps?

 

I wish they had kept the clear windows. I don't like that face plate.