Deleting/re-assigning components did not helped.
Joan_Sparky: there is three parts, left - libraries, middle - my assignments and right - list of selected library (from left part) items.
Anyway, thanks to your clues I have solved the problem. Looking at files interesting thing for me was, that files were edited today, anyway no date was changed for any file, except .sch. So, I took all files, moved them to other folder and generated again. This solved my problem, and exactly --> re-generating the netlist.
Once again, thanks all for your input!