Qt Distance Field Generator Crash

How to reproduce

• Error happens when font file is loaded
  • End of cmap table reached when parsing subtable format '4'
  • End of cmap, subtable format '4', reached when fetching character '%1' in range [%2, %3]

• It generates distance field even if the above error happens
• It crashes at several different points but same function MainWindow::createSfntTable()
  • buffer.write(reinterpret_cast<char *>(&glyphRecord), sizeof(QtdfGlyphRecord));
  • memcpy(outBits, inBits, image.width());
  • QVector<QDistanceField> textures;

Font for testing: NanumBarunGothic.ttf