UGENE crashes on editing sequence

1. Open attached sequence
2. a) Use menu

{Edit sequence->Reverse complement sequence}

Current state: UGENE crashes
b) Use menu

{Edit sequence->Reverse sequence}

Current state: UGENE crashes
c) Use menu

{Edit sequence->Complement sequence}

Current state: error occured, sequence disappeared from the display

Crash report: http://ugene.unipro.ru/ugenecrashes?id=6058