UGENE hangs on saving huge MSA as image on OS X

Scenario to reproduce:

1. Open "ftp://ugene-quad-ubuntu/misc\UGENE-4299/Chikungunya E1.fasta".
2. Try to export its full image.
   Expected state: a message about big size is shown.
   Current state: UGENE hangs up. Output contains messages:
   Jun 29 13:33:36 ugene-imac.unipro.ru ugeneuid[11794] <Error>: CGContextSetLineWidth: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update.
   Jun 29 13:33:36 ugene-imac.unipro.ru ugeneuid[11794] <Error>: CGContextSetLineJoin: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update.
   Jun 29 13:33:36 ugene-imac.unipro.ru ugeneuid[11794] <Error>: CGContextSetLineDash: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update.
   Jun 29 13:33:36 ugene-imac.unipro.ru ugeneuid[11794] <Error>: CGContextSetStrokeColorWithColor: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update.