CANNOT Watermark PPV videos

The main reason I signed up for this is to be able to watermark my videos, so when they leak I can catch and block the leakers. It won’t let me send any videos to my subscribers thru ‘Priority Mass Message’ if I check the “watermark” feature. Gives me an error EVERY time. If I uncheck the “watermark” button it will send it fine. Really frustrating, the Rulta techs keep telling me they are working on an update, but never happens.