oFusion looses sky dome material

very often oFusion will complain about missing sky dome material and stop displaying it. reopening the same max file fixes the problem.

to recreate: open a scene with a sky dome switch a view to oFusion, then to normal max perspective view and then to oFusion again, you'll get the error message and sky dome will not be rendered

updating the scene via menu doesn't help

This has been logged, thanks for reporting it, will be reviewed asap