The Early Tiger's cupola had a prominent arm sticking up from it, to support its hatch in the open position. There was a latch on the hatch itself, so that it could lock to this arm.
This image is extracted from the kit's CAD. Notice that the arm is tilted over to the right. There are raised lines on the kit's cupola to locate the arm when you glue it on, and they put it exactly in this position.
This is the latch on the kit's hatch. It is angled to meet the tilted arm. There are locating pins on the kit's hatch that guide you to glue it this way.
But when we look at a real cupola, it's different. This is the famous Tiger "131". The arm [A] rises up vertically, seen from this side. And the latch [B] is horizontal on the hatch. It's parallel to the hinge and the other items on the hatch.
This is an error in the kit. But I believe that it's not difficult to correct. The locating pins on the hatch, and the locating lines on the cupola, can be scraped off. The arm and latch can be glued at the correct angles. I will update this page when I get feedback from somebody who makes this correction.
Why would the kit designers make a mistake on this highly visible feature? Probably because the surviving Tiger "712", currently in the USA, has a tilted arm similar to the kit's arm. But that tank is an exception. Its arm was probably misplaced at the factory.
We have many photos of Tigers in the 501 battalion. They were manufactured in the same few weeks as "712". And almost all of them have vertical arms like Tiger "131". This photo shows one of them.
Final confirmation comes from the Tiger's own turret manual. It has a diagram of the cupola, copied from the drawings that were used in the factory. And, in this extract, we can see that the latch is indeed exactly horizontal and the arm does not lean to the right.