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Gray flashing screen when using XAP


since i received a new computer i cant get the XAP to work (other VMs on VirtualBox do work). I allready tried to deactivate the Hyper-V-Feature of Windows, but when i try to debug my App inside the emulator the screen is just flashing gray black (see attached files) (on a physical device everything is working just fine). The only thing i noticed different are these pieces of the log :

part 1 (only once, while startup) :
[EGL_xap] eglSurfaceAttrib not implemented
[OpenGLRenderer] Getting MAX_TEXTURE_SIZE from GradienCache
[OpenGLRenderer] MAX_TEXTURE_SIZE: 16384
[OpenGLRenderer] Getting MAX_TEXTURE_SIZE from Caches::initConstraints()
[OpenGLRenderer] MAX_TEXTURE_SIZE: 16384
[OpenGLRenderer] Enabling debug mode 0

part 2 (while runtime, often) :
[dalvikvm-heap] Grow heap (frag case) to 33.335MB for 16384012-byte allocation

I would consider this problem to be caused by the texture-loading part, because the OpenGL Error with an error code of 5 can get cought while loading the image containing the main textures.

Im running Windows 10 with an 64-bit architecture.

Thanks in advance, Tim.

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