im getting a few warnings in the log file when generating gerbers.
WARNING: more than one via class in film record
WARNING: Null REGULAR-PAD specified for padstack VIA188 at (-576.17 -530.00)
is it ok to leave these warnings alone?
Check the help, that Artwork Film setting is for negative planes only and just deletes the Flash on those planes, the Global Dynamic Parameters are for Positive shapes / Planes, they are the one you need set.
(IMHO, You could give the fabricator the new photoplot data, just in case....)