How to remove a watermark

[Rusty]

I use Zenfolio. For some reason my uploaded files contain a copyright watermark. I vaguely remember creating it but not applying it.
I want to remove it. 
Edit watermarks does not seem to work. Help says: "To delete a copyright watermark, choose it in the preset menu, then click the menu again and choose Delete Preset [name]."
So what is the preset menu and where do I look for it? I don't have a user preset that creates a watermark (left side of develop module)
Edit watermarks does not show the watermark that is the issue.
I watermark images within Zenfolio which are removed for image purchases. I have a client wanting images but I need to remove the watermark that somehow got uploaded to Zenfolio.
Running L:R 5.7 under Windows 10
Any help is much, much appreciated

[john beardsworth]

Precisely how are you uploading to ZenFolio? With Export, review the Export dialog box. With a Publish Service, double click the service's header. In either case,  you have probably overlooked the watermark setting.

[Rusty]

Thanks John, I'll look (again) for that. Clearly missing something...
I'm using Jeffery Friedl's publish to Lightroom tool.

[Rusty]

Fixed, too simple of course.
unchecked the watermark box in the publish tool and re-published the gallery.
The learning for me was that Zenfolio makes images available as uploaded so if there is a watermark in the uploaded image it gets downloaded to the purchaser. If I use the Zenfolio generated watermark within Zenfolio that gets removed from the files purchased.
thanks again John