Skybox not rendering on Adreno 220 devices

Unity Engine
,
1

Is there any one have problem rendering skybox on device using Adreno 220 GPU with Unity 4.6.1?
I have tested two devices (Sony LT26i, HTC Sensation) and both can’t render skybox correctly, and sometimes the screen glitched.
If I build apk with 4.5.5f1 and everything renders ok.

http://fogbugz.unity3d.com/default.asp?652291_fvf3jkkfvmfgob1l

Build with 4.5.5f1

Build with 4.6.1f1 / 4.6.1p1

2

Found that using RenderFX/Skybox Cubed causing this problem…
Only affect Adreno 220 devices and build with Unity 4.6+.
There is no problem if build with Unity 4.5.5f1.