[NTG-context] XeTeX and Latin Modern

Hi all, I got a new problem after upgrading to the new ConTeXt. When I compile a document with the xetex engine, during the xdvipdfmx processing, I got the following message, and all the math symbols are missing: ** WARNING ** This .map file looks like a dvips format fotmap file. ** WARNING ** -- Current input buffer is: ec-lmb10 LMRoman10-Demi "enclmec ReEncodeFont"