Switch to side-by-side view
--- a/src/qtgui/rclm_preview.cpp +++ b/src/qtgui/rclm_preview.cpp @@ -231,7 +231,7 @@ docnum++; else docnum--; - if (docnum < 0 || m_source.isNull() || docnum >= m_source->getResCnt()) { + if (docnum < 0 || !m_source || docnum >= m_source->getResCnt()) { QApplication::beep(); return; }