Hello, I'm getting many error messages: " Synchronize ERROR: unknown node type 12 " with the latest beta: " mtx-context | warning: synctex is enabled ... This is LuaTeX, Version beta-0.87.0 (TeX Live 2016/W32TeX/dev) " and with the MWE: ---- \starttext \section{Principy} \stoptext ---- - see the attached log. The error messages are printed only to the stdout, not in the compilation log file. Anyway, a valid .pdf file is successfully produced, so it seems "Synchronize ERROR" is rather warning. So what's going on? Note that I'm running test with synctex enabled - the message might be related to synctex. Best regards, Lukas -- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz Bezová 1658 147 14 Praha 4 Tel: +420 241 096 751 Fax: +420 244 461 038