Importing QtQuick.Controls in a Design Studio projects breaks the runtime

Action:

• Open DS 4.2 in windows and create a fresh MCU project
• Drag and drop a QtQuick.Controls item from the Components list into the project OR just simply add the following line to the top of Screen01.ui.qml: import QtQuick.Controls
• Press the play button

Expected:

• Application should launch as expected without issue

Actual:

• Application fails to launch with the following errors:

QML debugging is enabled. Only use this in a safe environment.
Info: Starting QML Runtime ((null):0, (null))
Warning: CoreApp is not initialized! Falling back to QGuiApplication! ((null):0, (null))
Warning: QQmlApplicationEngine failed to load component ((null):0, (null))
Warning: file:///C:/projects/UntitledProject7/UntitledProject7.qml:8:5: Type Screen01 unavailable (file:///C:/projects/UntitledProject7/UntitledProject7.qml:8, (null))
Warning: file:///C:/projects/UntitledProject7/Screen01.ui.qml: module "MCUDefaultStyle" is not installed (file:///C:/projects/UntitledProject7/Screen01.ui.qml:4294967295, (null))
qml: Did not load any objects, exiting.