Please stop making 'self-illuminated' PNG completely white in Rhino rendered view. As soon as PNG becomes Enscape self-illuminated, it becomes completely white in Rhino's 'rendered' view. It doesn't happen when PNG is Rhino's own 'self-illuminated.'
When there are several illuminated PNGs in the model, it becomes very hard to see which is which in Rhino's view.
Thanks for the report and pardon me for the delay - I'll investigate further and will forward this to our developers as well for further analysis. You'll hear back from me once I have further news.