LAUNCHXL-F280039C: Cannot bind global variables using GUI composer v3

Hi there,

I would like to ask regarding GUI composer v3, which I am starting to use for the first time. I just accomplished a successful target debugging through the online version of GUI composer by modifying the HTML source code as per:

<!-- Add target communication configuration below this line -->
<gc-target-connection-manager id="connection_manager" auto-connect active-configuration="usb+cr+json+streaming">
<gc-target-program-loader id="loader" auto-program device-name="TMS320F280039C" connection-name="Texas Instruments XDS110 USB Debug Probe" ccxml-path="./targetcfg/TMS320F280039C_LaunchPad.ccxml" program-or-bin-path="./firmware/ACDC30_DAB_CLA.out"></gc-target-program-loader>
<gc-transport-usb id="usb" device-name="TMS320F280039C"></gc-transport-usb>
<gc-codec-json id="json"></gc-codec-json>
<gc-codec-delimited-text id="cr"></gc-codec-delimited-text>
<gc-model-streaming id="streaming"></gc-model-streaming>
</gc-target-connection-manager>
<gc-widget-port-selection-dialog id="serial_port_element"></gc-widget-port-selection-dialog>

With that modification I can load the program to my target device, however, I cannot attach any of my global variables by using <> button in value of any gauge. I tried some code modification to use xds as transport, as per:

    <!-- Add target communication configuration below this line -->
    <gc-target-connection-manager id="connection_manager" auto-connect active-configuration="xds+usb+cr+json+streaming">
    <gc-target-program-loader id="loader" auto-program device-name="TMS320F280039C" ccxml-path="./targetcfg/TMS320F280039C_LaunchPad.ccxml" program-or-bin-path="./firmware/ACDC30_DAB_CLA.out"></gc-target-program-loader>
    <gc-transport-usb id="usb" device-name="TMS320F280039C"></gc-transport-usb>
    <gc-transport-xds id="xds" device-name="TMS320F280039C" connection-name="Texas Instruments XDS110 USB Debug Probe"></gc-transport-xds>
    <gc-codec-json id="json"></gc-codec-json>
    <gc-codec-delimited-text id="cr"></gc-codec-delimited-text>
    <gc-model-streaming id="streaming"></gc-model-streaming>
    </gc-target-connection-manager>
    <gc-widget-port-selection-dialog id="serial_port_element"></gc-widget-port-selection-dialog>