Well it only seems to crash whenever I add one of the two Object3D's to the world (and if they are visible)... Like I tried to describe in my previous post...
I don't really understand what makes these Object3D's so special from the other Object3D's... :/
Settings Config.useVBO = false didn't fix the issue...
Here is a bigger log with OpenGL calls:
10-10 15:49:03.867: I/jPCT-AE(18436): Creating buffers...
10-10 15:49:03.867: D/libEGL(18436): glGetError();
10-10 15:49:03.867: D/libEGL(18436): glGenBuffers(1, (GLuint *) 0xaa9acc30);
10-10 15:49:03.867: D/libEGL(18436): glGetError();
10-10 15:49:03.867: D/libEGL(18436): glGenBuffers(1, (GLuint *) 0xaa9acc30);
10-10 15:49:03.867: D/libEGL(18436): glGetError();
10-10 15:49:03.867: D/libEGL(18436): glGenBuffers(1, (GLuint *) 0xaa9acc30);
10-10 15:49:03.867: D/libEGL(18436): glGetError();
10-10 15:49:03.867: D/libEGL(18436): glGenBuffers(1, (GLuint *) 0xaa9acc30);
10-10 15:49:03.867: D/libEGL(18436): glGetError();
10-10 15:49:03.867: D/libEGL(18436): glGenBuffers(1, (GLuint *) 0xaa9acc30);
10-10 15:49:03.867: D/libEGL(18436): glBindBuffer(0x8892, 1);
10-10 15:49:03.867: D/libEGL(18436): glBufferData(0x8892, 25716, (const void *) 0x78d58010, 0x88e4);
10-10 15:49:03.868: D/libEGL(18436): glBindBuffer(0x8892, 2);
10-10 15:49:03.871: D/libEGL(18436): glBufferData(0x8892, 25716, (const void *) 0x78d66010, 0x88e4);
10-10 15:49:03.872: D/libEGL(18436): glBindBuffer(0x8892, 3);
10-10 15:49:03.875: D/libEGL(18436): glBufferData(0x8892, 34288, (const void *) 0x78d74010, 0x88e4);
10-10 15:49:03.876: D/libEGL(18436): glBindBuffer(0x8892, 4);
10-10 15:49:03.879: D/libEGL(18436): glBufferData(0x8892, 17144, (const void *) 0x78d86010, 0x88e4);
10-10 15:49:03.880: D/libEGL(18436): glBindBuffer(0x8892, 0);
10-10 15:49:03.883: D/libEGL(18436): glBindBuffer(0x8893, 5);
10-10 15:49:03.884: D/libEGL(18436): glBufferData(0x8893, 23808, (const void *) 0x7935b010, 0x88e4);
10-10 15:49:03.884: D/libEGL(18436): glBindBuffer(0x8893, 0);
10-10 15:49:03.887: I/jPCT-AE(18436): VBO created for object 'object17'
10-10 15:49:03.888: D/libEGL(18436): glEnableVertexAttribArray(5);
10-10 15:49:03.888: D/libEGL(18436): glBindBuffer(0x8892, 1);
10-10 15:49:03.888: D/libEGL(18436): glVertexAttribPointer(5, 3, GL_FIXED, GL_FALSE, 12, (const void *) 0x00000000);
10-10 15:49:03.888: D/libEGL(18436): glEnableVertexAttribArray(4);
10-10 15:49:03.888: D/libEGL(18436): glBindBuffer(0x8892, 2);
10-10 15:49:03.888: D/libEGL(18436): glVertexAttribPointer(4, 3, GL_FIXED, GL_FALSE, 12, (const void *) 0x00000000);
10-10 15:49:03.888: D/libEGL(18436): glDisableVertexAttribArray(6);
10-10 15:49:03.888: D/libEGL(18436): glUniform1i(7, 0);
10-10 15:49:03.888: D/libEGL(18436): glActiveTexture(GL_TEXTURE0);
10-10 15:49:03.888: D/libEGL(18436): glEnableVertexAttribArray(0);
10-10 15:49:03.888: D/libEGL(18436): glBindBuffer(0x8892, 4);
10-10 15:49:03.888: D/libEGL(18436): glVertexAttribPointer(0, 2, GL_FIXED, GL_FALSE, 8, (const void *) 0x00000000);
10-10 15:49:03.888: D/libEGL(18436): glBindBuffer(0x8892, 0);
10-10 15:49:03.888: D/libEGL(18436): glBindBuffer(0x8893, 5);
10-10 15:49:03.888: D/libEGL(18436): glDrawElements(GL_TRIANGLES, 11904, GL_UNSIGNED_SHORT, (const void *) 0x00000000);
10-10 15:49:03.958: W/google-breakpad(18436): ### ### ### ### ### ### ### ### ### ### ### ### ###
10-10 15:49:03.958: W/google-breakpad(18436): Chrome build fingerprint:
10-10 15:49:03.958: W/google-breakpad(18436): 3.8
10-10 15:49:03.958: W/google-breakpad(18436): 16
10-10 15:49:03.958: W/google-breakpad(18436): ### ### ### ### ### ### ### ### ### ### ### ### ###
10-10 15:49:03.958: A/libc(18436): Fatal signal 11 (SIGSEGV), code 2, fault addr 0x74987000 in tid 18820 (GLThread 13921)
10-10 15:49:05.734: W/System(18835): ClassLoader referenced unknown path: /data/app/com.aeroshark333.earthify3d-2/lib/arm64
10-10 15:49:05.763: D/SensorManager(18835): com.aeroshark333.earthify3d --- call SystemSensorManager
10-10 15:49:05.764: W/SensorManager(18835): xym---android_hardware_SensorManager.cpp nativeClassInit
EDIT: I tried to load the renderer class in a regular (non-live wallpaper) activity, but the same error occurs there as well...
So I doubt it actually is the live wall-paper now...