Compile error: could not convert ‘nullptr’ from ‘std::nullptr_t’ to ‘const Frames&’

Arch Linux gcc 10.2.0-4

libldutils, build folder, and ZombieTracker in the same parent folder. All on current master and fresh clone

Compile goes fine until

g++ -c -pipe -std=c++17 -Wall -pedantic -O2 -DNDEBUG -Wall -Wextra -D_REENTRANT -fPIC -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x060000 -DQT_NO_DEBUG -DQT_CHARTS_LIB -DQT_WEBENGINEWIDGETS_LIB -DQT_PRINTSUPPORT_LIB -DQT_SVG_LIB -DQT_WIDGETS_LIB -DQT_WEBENGINECORE_LIB -DQT_QUICK_LIB -DQT_GUI_LIB -DQT_XML_LIB -DQT_QMLMODELS_LIB -DQT_WEBCHANNEL_LIB -DQT_QML_LIB -DQT_NETWORK_LIB -DQT_POSITIONING_LIB -DQT_CONCURRENT_LIB -DQT_CORE_LIB -I../zombietrackergps -I. -I../libldutils -I/usr/local/include/libldutils -I/usr/include/libldutils -I/usr/include/qt -I/usr/include/qt/QtCharts -I/usr/include/qt/QtWebEngineWidgets -I/usr/include/qt/QtPrintSupport -I/usr/include/qt/QtSvg -I/usr/include/qt/QtWidgets -I/usr/include/qt/QtWebEngineCore -I/usr/include/qt/QtQuick -I/usr/include/qt/QtGui -I/usr/include/qt/QtXml -I/usr/include/qt/QtQmlModels -I/usr/include/qt/QtWebChannel -I/usr/include/qt/QtQml -I/usr/include/qt/QtNetwork -I/usr/include/qt/QtPositioning -I/usr/include/qt/QtConcurrent -I/usr/include/qt/QtCore -Ibuild/moc -Ibuild/ui -I/usr/lib/qt/mkspecs/linux-g++ -o build/obj/mainwindow.o ../zombietrackergps/src/ui/windows/mainwindow.cpp
In file included from ../zombietrackergps/src/ui/widgets/trackmap.cpp:28:
/usr/include/marble/GeoPainter.h:510:49: error: could not convert ‘nullptr’ from ‘std::nullptr_t’ to ‘const Frames&’ {aka ‘const QFlags<Marble::GeoPainter::Frame>&’}
  510 |                           const Frames &flags = nullptr);
      |                                                 ^~~~~~~
      |                                                 |
      |                                                 std::nullptr_t

EDIT: marble infomation

marble-common 20.12.0-1
marble-qt 20.12.0-1