gstreamer1.0-plugins-good - qml6glsink

Hello all

I'm trying to use qml6glsink on an X11 Yocto target. I'm able to build the GStreamer Plugin with the following bbappend:
PACKAGECONFIG[qt6] = "-Dqt6=enabled,-Dqt6=disabled,qtbase qtdeclarative qtbase-native qttools-native"
PACKAGECONFIG:append = " qt6"

do_configure:prepend:class-target() {
      export PATH=${STAGING_DIR_NATIVE}${libexecdir}:$PATH
}

With this, I get the libgstqml6.so file, and gst-inspect reports the plugin:
# gst-inspect-1.0 | grep qml
qml6:  qml6glsink: Qt6 Video Sink

However, the plugin fails at runtime. I see the following errors:
0:00:00.507629238 1527546   0x7f78000ea0 ERROR            qtglutility gstqt6glutility.cc:221:gst_qml6_get_gl_wrapcontext: Unknown platform
0:00:00.507947328 1527546   0x7f78000ea0 ERROR             qtglwidget qt6glitem.cc:751:initWinSys: 0x55919a3680 failed to retrieve wrapped context (NULL)
0:00:00.507984884 1527546   0x7f78000ea0 WARN                  qtsink gstqml6glsink.cc:364:gst_qml6_gl_sink_change_state:<qml6glsink0> error: Could not initialize window system

Has anyone experienced similar issues with qml6glsink on Yocto?

Thanks

Benjamin