Let me try to clarify the situation. At the moment, TestComplete indeed does not support React Native applications. The tree shown in Object Browser for the React Native Material Design demo app is a tree of native Android objects available to TestComplete after instrumenting the app. This tree, however, differs from the actual React Native structure.
Since TestComplete does not support React Native, some React Native applications cannot be instrumented correctly, so even the native Android tree is not available for them in Object Browser. TMbet, this is the reason why for your application no tree is shown in Object Browser.
Our product team is aware of the issue and will be discussing possible improvements that should allow supporting React Native apps.
