Roof frame: Is the warping of the rafters normal?

Hello,
It’s probably no help to you, but everything in my roof structure was screwed. Unfortunately, I cannot say to what extent that was necessary. Perhaps it was just because the whole construction was a bit more complex.

I believe they nailed and screwed on the new roof at our place. It's also called a "nail binder," I guess that's because it is connected with nails? :D I am not an expert in roofs but I would also be bothered by the picture you showed. It just looks crooked, you can see that with the naked eye. What does your site manager say about it?

I wonder whether it was installed crookedly or if the wood moved afterwards due to weather or other influences.