PDFsam doesn't start of Mac OS

[torakiki]

This is somehow related to the startup process where we set the Stage size.
INFO 13:17:07.047 o.p.PdfsamApp[JavaFX Application Thread] Started in 4 seconds
Incomplete attachment. (GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT)(FBO - 820)
Error creating framebuffer object with TexID 1)
2015-10-19 13:17:07.245 java[9789:591061] GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
INFO 13:17:08.431 o.p.u.UpdatesController[ForkJoinPool.commonPool-worker-1] PDFsam 3.0.0.M2 is available for download
2015-10-19 13:17:08.482 java[9789:591061] GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
2015-10-19 13:17:08.490 java[9789:591061] GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
2015-10-19 13:17:08.505 java[9789:591061] GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
2015-10-19 13:17:08.522 java[9789:591061] GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
2015-10-19 13:17:08.540 java[9789:591061] GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
2015-10-19 13:17:08.555 java[9789:591061] GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
2015-10-19 13:17:08.574 java[9789:591061] GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
2015-10-19 13:17:08.588 java[9789:591061] GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
2015-10-19 13:17:08.606 java[9789:591061] GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT