I am facing strange behaviour, the QML stored in qrc and the QML executed are different. so I think the QtQuickCompiler precompiler the QML and cached it.

   QFile f(":/main.qml");
  f.open(QIODevice::ReadOnly);
  auto s = f.readAll(); 

I dumped the QML in qrc, and confirmed the QML file is actually updated.

I reproduce this issue on RPI4 with Automotive grade Linux. and by enabling QML_DISABLE_DISK_CACHE=1 can fix the issue.

attached the binary and sample which I tried: settings settings.zip