I've done more tests today.
It seems, that it's everything okay with TC. And airplane also rolls with right bank angles (probably first impression was impacted by turbulence and cross wind). But problem still exists: airplane flies 20 degrees left of track or heading selected.
I.e., if I set heading 180, it flies 160 and so on.
peterh337, could you please send it to me by some way?
Also, probably someone knows maintenance organization, who is able to solve it (if I would not my self) in Finland or east of Sweden?