My guess is that the attorney letter that comes with an annual report was not filed. That needs filed and then the yield is removed. Still, I wish they didn't ignore that part of the requirement (If that is what it is) and allowed themselves to get the yield. I've seen the yield on many stocks, after an annual report is filed, and this is the most common reason. Just my guess.
Bill needs to get it lifted, and meet whatever requirement is missing from the annual report.