The documentation to "append"

in: https://doc.qt.io/qt-6/qml-qtqml-models-objectmodel.html

has an example how to use it:

objectModel.append(objectComponent.createObject()) 

if you follow this, your app will most likely crash sooner or later, because the garbage collector will delete the created object.

Two options:

1. the documentation is correct and "append" does some "magic" to have the garbage collector not delete the item. Then the "magic" is broken.
2. the documentation is incomplete. In this case, please add a parent to the createObject in the example. There are two other examples for "get" and "insert" where the parent is also missing.