Strange behaviour in direct renderMode

Hello folks,

I have been developing a mobile game with Adobe AIR and Starling Framework.

The game works fine in most devices that i could test (Android and iOS).

But in a especific tablet model it's happening a strange behaviour in standard diplay list render. In Stage3D it's all right.

I can't explain the problem with words but I attached some images about a simple test on device.

The problem is solved when i change the render mode to "cpu" or "auto" but the Stage3D doesn't work.

Anyone ever seen this problem?

Runnin the SWF in PC

Running in tablet (same code)

Game running in tablet