@jayxcamps > I checked your URL. Looks like you changed to Responsive Gallery Grid.
I still use this one and it works fine on my installation.
FYI: full/original images shouldn’t get a watermark, since it’s the original and otherwise you can’t revert it imo. Solution: use a scaled image in the gallery, which has the watermark.
@Thorvar > check your js console. something might be conflicting. The right click option works.
@Romain > You shouldn’t watermark your originals because reverting will be more difficult. Just use/create a new size as ‘large image’ and add that to the watermarking selection.