Add External Data - ThingWorx Studio: Not showing the Thing created in ThingWorx Composer

Hi Team

I am using ThingWorx Trial version.

I have installed ThingWorx Studio locally on my laptop. The ThingWorx Composer is a hosted instance and hence I launch it and use it online. I understand the simple process of going to 'Add External Data' and connect the Thing property into the 3D model I created in ThingWorx Studio.

But the Thing is not shown in the list. I want to bring in the property value I have set manually in ThingWorx composer to reflect with my 3D model in ThingWorx studio. Please help. I have seen old posts but didnt helped much.

Link for Composer

https://pp-1804270911kf.devportal.ptc.io/Thingworx/Composer/index.html