Have you tested r189? Are you sure this is not an Ejecta bug if it works correctly on other platforms?
I'd recommend migrating to Cordova as soon as you can anyway, since we are planning to drop support for non-browser engines soon, in part because bugs in engines that are not real browsers can be very difficult to deal with.
Please also attach a .capx, it is mandatory for bug reports. For example, the screenshots you post could in fact be the correct result if you have chosen letterbox integer fullscreen mode.