Why does CIQ WebRequest example work in simulator with FR935 but not with FR945 and MARQ devices?

The CIQ SDK WebRequest example works in the simulator with several devices e.g. FR935 but not with FR945 or MARK devices.
When I select FR945 in "Run Configurations" the simulator stops after onStart in WebRequestApp.
Does anybody have an explanation for this behavior?

I am working on a a widget where I can see the same behavior.
Widget works in simulator with FR935 but not with FR945 or MARK devices.

Regards, Udo