Exception that appears more often with higher framerate, eg 500fps result in this in a few seconds.

[empirephoenix]

java.lang.IllegalArgumentException: Number of remaining buffer elements is 0, must be at least 1920000. Because at most 1920000 elements can be returned, a buffer with at least 1920000 elements is required, regardless of actual returned element count
at org.lwjgl.BufferChecks.throwBufferSizeException(BufferChecks.java:162)
at org.lwjgl.BufferChecks.checkBufferSize(BufferChecks.java:189)
at org.lwjgl.BufferChecks.checkBuffer(BufferChecks.java:230)
at org.lwjgl.opengl.GL11.glTexImage2D(GL11.java:2845)
at com.jme3.renderer.lwjgl.TextureUtil.uploadTexture(TextureUtil.java:352)
at com.jme3.renderer.lwjgl.LwjglRenderer.updateTexImageData(LwjglRenderer.java:1913)
at com.jme3.renderer.lwjgl.LwjglRenderer.setTexture(LwjglRenderer.java:1936)
at com.jme3.material.MatParamTexture.apply(MatParamTexture.java:86)
at com.jme3.material.Material.render(Material.java:1088)
at com.jme3.renderer.RenderManager.renderGeometry(RenderManager.java:523)
at com.jme3.renderer.queue.RenderQueue.renderGeometryList(RenderQueue.java:322)
at com.jme3.renderer.queue.RenderQueue.renderQueue(RenderQueue.java:371)
at com.jme3.renderer.RenderManager.renderViewPortQueues(RenderManager.java:788)
at com.jme3.renderer.RenderManager.flushQueue(RenderManager.java:719)
at com.jme3.renderer.RenderManager.renderViewPort(RenderManager.java:983)
at com.jme3.renderer.RenderManager.render(RenderManager.java:1035)
at com.jme3.app.SimpleApplication.update(SimpleApplication.java:252)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.runLoop(LwjglAbstractDisplay.java:151)
at com.jme3.system.lwjgl.LwjglDisplay.runLoop(LwjglDisplay.java:185)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:228)
at java.lang.Thread.run(Thread.java:745)

[empirephoenix]

Guess I found it,
in is Covered is from the jfx thread the buffers limit set, this fucking up lwjgls buffer management mid upload.!