Hi! I'm trying to use Context to export a document to epub. Following the instructions on Contextgarden everything works up to a point: When I add manual hyphenation for the word "Trennalgorithmus" and \setupbackend[export=yes,xhtml=yes] I get: lua error > error on line 1 in file /Volumes/Macintosh HD/Users/axel/Documents/Text/Dokumente_LaTeX/context/Dante 2015/Dominik Wagenführ - ePub/epub/epub_bug.tex: .../context/tex/texmf-context/tex/context/base/back-exp.lua:2516: bad argument #1 to 'utfchar' (invalid value) stack traceback: [C]: in function 'utfchar' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2516: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2752: in function 'nodes_handlers_export' [string "local nodes_handlers_cleanuppage = nodes.hand..."]:18: in function <[string "local nodes_handlers_cleanuppage = nodes.hand..."]:10> (...tail calls...) .../context/tex/texmf-context/tex/context/base/node-shp.lua:171: in function 'finalizebox' [\directlua]:1: in main chunk 1 >> % !TEX encoding = UTF-8 Unicode See attached log file. If I remove the hyphenation, everything works, but the hyphenation is wrong. I'm using: current version: 2015.02.03 23:55 Greetings Axel