Birds of Sweden

Note: A few days ago I had the fortune to see what it seems to be a far away traveler, the cinereous tit.
Normally they originates from east asia, I finds it hard to believe that the bird flew such a long distance.
I am no bird expert but from what I can see on the internet this is a cinereous tit.
Also what I read they have never been seen in Sweden?
They are not present in my bird book from 2022 (Europe birds), not even as a temporary guest. This can very well be a very rare visitor.

Maybe there is a logical explanation to this?