Copying and Pasting Event FX filters and parameters doesn’t appear to work if the source and target events belong to a group; even if it’s the same one.
Unfortunately this is the default case when you drag several media files into the timeline at the same time. I do this when I’m creating a photo slideshow, with Vegas adding an automatic one second overlap of all the images added to the timeline.
To get this to work I have to select four contiguous events; starting with the one before the copy source event, and ending with the one after the paste target event. Then I right-click and select Group/Remove From. Now I can past my FX settings into my target event.
This seems like a bug to me. I’m using Vegas Pro 9.0e, and I can’t think of any reason why FX settings should be prevented from being copied into a grouped event. Pan/Crop settings copy and paste without regard to grouping.