[NTG-context] Lucida Type1 Fonts

I have been using TUG's Lucida Type1 fonts for a while in ConTeXt, but a recent update of the standalone version of ConTeXt is giving the following when building a document containing math: unknown math characters: μ (U+003BC) σ (U+003C3) χ (U+003C7) (n=44) Obviously, it's having a problem with \mu and \chi, and these characters are showing up as a "?" in the document. Does anyone know what may have changed recently to break Lucida Type1 support? Troy