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When I run the latest standalone beta, the following \starttext Hello, world! \stoptext fails with the error message: lua error > lua error on line 5 in file /Users/bowen1/Desktop/TestTeX/test-01.tex: ...eXt/tex/texmf-context/tex/context/base/mkiv/cldf-ini.lua:1120: no string to print stack traceback: [C]: in function 'tex.sprint' ...eXt/tex/texmf-context/tex/context/base/mkiv/cldf-ini.lua:1120: in upvalue 'sprint' ...eXt/tex/texmf-context/tex/context/base/mkiv/cldf-bas.lua:180: in upvalue 'ctx_latelua' ...eXt/tex/texmf-context/tex/context/base/mkiv/anch-pos.lua:643: in function <...eXt/tex/texmf-context/tex/context/base/mkiv/anch-pos.lua:601> (...tail calls…) 1 2 3 \starttext 4 5 >> Hello, world! 6 7 \stoptext 8 Alan