The Multimedia component has explicit error reporting when loading plugins. This should probably be removed as Qt already has this (and more) debugging information available when the QT_DEBUG_PLUGINS environment variable is set to 1.

At the very least, an opt-in/out system should be utilized as some situations (such as the Simulator running on Windows) results in a bunch of plugin warnings due to the use of debug and release files.

While tracking this down, I also uncovered what appears to be an incomplete plugin-loading function. Unlike QMediaPluginLoader::load, QAudioPluginLoader::load does not clean up objects that are of an unsuitable type.