- Pane headline missing using the Windows classic theme
  https://sourceforge.net/p/omegat/bugs/697/

  - Error while trying to validate tags with a changed order
  https://sourceforge.net/p/omegat/bugs/698/

  - Error: org.omegat.filters2.TranslationException: String index out of range: -1
  https://sourceforge.net/p/omegat/bugs/699/