Webfonts don't work in Lightroom

Lamar Pen shows up as an ugly bitmapped font when used as a Watermark in the Export dialog. Same as most other Adobe Webfonts. Some webfonts don't show up at all. Ironically, the ones that show in the preview as nice outlines, don't print on the exported picture. The rest show up in the Preview as bitmaps, and export as bitmaps. When I find Lamar Pen in the internet and install that, it works perfectly, so I can only assume that Adobe doesn't want us to use Webfonts as Watermarks on our pictures. Maybe I missed that memo.