The QML Type Compiler indicates "Warnings occurred while importing module" and the when using the QML Component in question, it appears to not be found.

To replicate the issue:

1. Create 2 or more QML modules with qt_add_qml_module. Each module must have a QML file
2. Import one module, let's call it second module, into the other module, let's call it main module
3. Import and instantiate a QML component of the second module from the main module.
4. ENABLE_TYPE_COMPILER on both modules

Example code is attached. Important excerpts here:

// Second module's CMakeLists.txt

qt_add_qml_module(${PROJECT_NAME}
    URI SharedModule
    VERSION 1.0
    RESOURCE_PREFIX /qt/qml/
    QML_FILES
    "SharedModule.qml"
    ENABLE_TYPE_COMPILER
)

// Second module's .qml file

Rectangle {
    color: "#234567"
}

// First module's CMakeLists.txt

qt_add_qml_module(${PROJECT_NAME}
    URI Experiments
    VERSION 1.0
    RESOURCE_PREFIX /qt/qml/
    IMPORTS
    SharedModule
    QML_FILES
    "main.qml"
    ENABLE_TYPE_COMPILER
)

// First module's .qml file

import SharedModule

SharedModule {
    width: 400
    height: 200
}

Note:
This fails in the same way regardless of whether the modules are imported Dynamically or Statically.