Problem building/running on Android (emulator)

Ok, nothing!

I’ve installed API21 and put in my project.xml

<android target-sdk-version="21" />

I’ve setup a different emulator with Google API 21 and x86 (and obviously installed IntelHAXM) and put in my project.xml

<compilerflag name="-DHXCPP_X86" if="x86" />
<architecture name="x86" if="x86" />

I compile with no issues, the app come to the emulator with the following commands
terminal1

cd to/your/androidsdk/
emulator -avd adtest

terminal2

cd to/your/project
lime test android -emulator -debug

what I get is a blank screen
I can see the background color in one screen when I “draw” a Bitmap rotated (I can see the triangles on the edges colored as the bgcolor).
I suppose every sprite get blitted black.

(sound works, touch_input works)

What can I do?