Egon, i got the following exception, you may wanna know.
I/jPCT-AE (10652): Object 'object111' shares compiled data with object 'object110'
W/System.err(10652): java.lang.RuntimeException
W/System.err(10652): at com.threed.jpct.CompiledInstance.render(CompiledInstance.java:171)
W/System.err(10652): at com.threed.jpct.GLRenderer.drawVertexArray(GLRenderer.java:2027)
W/System.err(10652): at com.threed.jpct.World.draw(World.java:1310)
W/System.err(10652): at com.threed.jpct.World.draw(World.java:1092)
W/System.err(10652): at raft.jumpy.android.JumpyActivity$MyRenderer.onDrawFrame(JumpyActivity.java:539)
W/System.err(10652): at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1116)
W/System.err(10652): at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:975)
I/jPCT-AE (10652): [ 1282343088183 ] - ERROR: Internal error, please report: render() called on an uncompiled object (object111)!
after some digging i've found the reason: i call build(false) on an object and then call shareCompiledData(..) on it. i know it makes no sense, i've corrected my code..