Problem opening Siemens Teamcenter Active workspace via JCEF via IBM Rhapsody 8.4. Opening it from Rhapsody only gives a white screen

Question

But if we isolate the code and run the code separately(from eclipse and not Rhapsody) it renders perfectly. In Task manager > Details tab, we can see that 5 jcef_helper threads are created.

We're using Swing (JFrame etc) in the integration code to launch it from Rhapsody.

What might be the reason its not opening from Rhapsody? In Rhapsody the jcef_helper threads are not created in the first place.

We're using JCEF in both the cases.