Rendering issue on Samsung S4 (specific models) with AIR app

We have an Android/IOS app compiled with AIR 3.9. It works fine for all devices but some specific models of Samsung S4. First let me describe the device models & compilation details, as below:

> Issue found on devices (given models only, on other S4(s) works fine):

     - Samsung Galaxy S4 (Model No. SGH-M919)

     - Samsung Galaxy S4 (Model No. SCH-I545)

> Compilation:

     - AIR 3.9 (also with 3.8)

     - Render Mode GPU

     - Bitmap graphcis

> Problem:

There problem is with redering of grpahics speically which are masked. Either those masked graphcis doesn't display at all OR display in wrong layer (also distracted) when Display List realted to that object is manipaulated i.e. A child object is added to the parent of masked object & the masked object appears above it which was previously not visible. Some masked obejcts are not displayed at all.

> Observation:

It was same with CPU mode rendering however when the render mode is changed to AUTO the issue is resovled. But then app is preforming too slow as it uses all bitmap graphcis.

It seems the specfic S4 models are using different type of GPU, though it should not create such weird issue. Can anybody suggest possible solution for this? OR have faced sismilar behavior on said devices ?