The group that all your images are in was scaled up over 500%. So the filter is rasterizing the image, which is then getting scaled very larger. Setting the Artwork/Effects group back to 1005, then scaling the image to 100% fixed the issue. (without the filter, the scaled down image and the scaled up group cancel each other out).
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Mark Spencer
Freelance Producer/Editor/Motion Graphics Artist
Apple-certified Master Trainer
Author, Motion 4 from Peachpit Press
https://www.applemotion.net