Force Updating Cast Images?

[KodiUser1138]

I've updated all the cast images for my AEW collection to their current images from the main AEW website. I had JF refresh the metadata for all series but only a few images updated. The rest all stayed as they were prior. Is there a way to force JF to update cast images upon making changes?  I know you can manually add cast images to each cast member but that's a laborous task that's already been half completed.