We have our second issue like this now, in another file. Not sure if it's the same project as the previous one though, I didn't take not of the project at the time. If anyone else has this issue, I'd love to know to try and find which plugin / script might be killing the Corona VFB to appear in production mode...
Again, it works in iterative mode.
I could send the max file again, but the results will be the same as last time. Last plugin I installed (yesterday) was "Populate Terrain 1.86" - But I reckon alot of pple have this one running without issues so honestly I don't know :(
Grts