Hi Lus1kka,
Your comments are very appreciated.
You are the first user that has reported problems with the sceneexporter plugin. I will try to replicate your case. Visualizer uses the windows registry to store latest values for file names. What may be happening is that until the user sets the name at least once the registry contains invalid values. I didn't think of testing for this case.
If you have ideas for new features, please post them.