Hey Roman,
There are indeed only ascii characters in that record. Anyway, I can't reproduce the problem with this information: I still don't know what your table looks like, and which encoding the database uses... if the database isn't too huge, could you try dumping it, importing it into a new database with the same encoding, testing whether the problem still occurs, and if yes, delete most of the rows, dump again, and send to me?
Best, Marijn