WARNING: Shader Unsupported: 'Hidden/Internal-GUITexture' - Setting to default shader.

Hi,

I posted a few days back with an issue where sprites would load fine sometimes and would just appear black at other times. I am using default shaders and have not changed these at any point so I really don't know where a shader issue is coming from.

Details here: http://answers.unity3d.com/questions/1041377/black-sprites-on-some-installs-android.html

Today I have run logcat whilst running the app twice, one with a good run where everything appears as it should and one with black sprites. Comparing the log cats, the main difference I see is the following lines.

D/Unity (23092): Sensor : Accelerometer ( 1) ; 0.038307 / 0.01s ; BOSCH

152 BMA250 3-axis Accelerometer / BOSCH

153 E/Unity (23092): GLSL compilation failed, no infolog provided

154 E/Unity (23092):

155 E/Unity (23092): (Filename: ./Runtime/GfxDevice/opengles/ApiGLES.cpp Line: 460 156 )

157 E/Unity (23092):

158 D/Unity (23092): Note: Creation of internal variant of shader 'Hidden/Internal 159 -GUITexture' failed.

160 D/Unity (23092): WARNING: Shader

161 D/Unity (23092): Unsupported: 'Hidden/Internal-GUITexture' - Setting to default shader.

163 E/Unity (23092): allocation 0x0xc0000000 already registered @ ./Runtime/GfxDevice/opengles/DataBuffersGLES.cpp:l224 size 96; now calling from ./Runtime/GfxDevice/opengles/DataBuffersGLES.cpp:l224 size 12?

166 E/Unity (23092):

167 E/Unity (23092): (Filename: ./Runtime/Allocator/MemoryManager.cpp Line: 1261)

168 E/Unity (23092):

169 E/Unity (23092): allocation 0x0xc0000000 already registered @ ./Runtime/GfxDevice/opengles/DataBuffersGLES.cpp:l224 size 96; now calling from ./Runtime/GfxDevice/opengles/DataBuffersGLES.cpp:l224 size 96?

172 E/Unity (23092):

173 E/Unity (23092): (Filename: ./Runtime/Allocator/MemoryManager.cpp Line: 1261)

174 E/Unity (23092):

175 E/Unity (23092): allocation 0x0xc0000000 already registered @ ./Runtime/GfxDevice/opengles/DataBuffersGLES.cpp:l224 size 96; now calling from ./Runtime/GfxDevice/opengles/DataBuffersGLES.cpp:l224 size 96?

178 E/Unity (23092):

179 E/Unity (23092): (Filename: ./Runtime/Allocator/MemoryManager.cpp Line: 1261)

180 E/Unity (23092):

181 E/Unity (23092): allocation 0x0xc0000000 already registered @ ./Runtime/GfxDevice/opengles/DataBuffersGLES.cpp:l224 size 96; now calling from ./Runtime/GfxDevice/opengles/DataBuffersGLES.cpp:l224 size 96?

184 E/Unity (23092):

185 E/Unity (23092): (Filename: ./Runtime/Allocator/MemoryManager.cpp Line: 1261)

186 E/Unity (23092):

Thanks for any help that can be offered.