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I get black screen and this in ErrLog.log

java.lang.NullPointerException
    at archipelago.Scene.viewPortShadowFrustrumAndMore(Scene.java:663)
    at archipelago.Scene.drawScene(Scene.java:1009)
    at archipelago.Scene.drawMyScene(Scene.java:1400)
    at archipelago.Scene$6.display(Scene.java:2887)
    at jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:692)
    at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:674)
    at com.jogamp.opengl.awt.GLCanvas$11.run(GLCanvas.java:1428)
    at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1293)
    at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:1147)
    at com.jogamp.opengl.awt.GLCanvas$12.run(GLCanvas.java:1442)
    at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:303)
    at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
    at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
    at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

Thanks for the feedback! That is odd... I have not seen that and cannot duplicate that problem. Does it do that right of the bat? Can you give me any additional information?  Perhaps describe your rig? Thanks again!

Yes, just from the start. I am on Windows 7, but OpenGL version should be good enough

I am afraid Windows 7 might be a little too old and the program may be demanding too much. My oldest machine is a Windows 10. What GPU do you have? 

Is anybody else running into this same "black screen" problem?

See my reply below