Dear list, Trying to use \global with \toksapp, e.g. when saying »\global\toksapp0{}«, luatex throws a fatal error: --------------------------------------------------------- This is LuaTeX, Version 1.13.0 (TeX Live 2021/dev) restricted system commands enabled. **! This can't happen (prefix). <*> \global\toksapp 0{} ! ==> Fatal error occurred, no output PDF file produced! Transcript written on texput.log. --------------------------------------------------------- While I know \gtoksapp exists, this seems surprising nevertheless; the error message seems to agree. Is this indeed unintended? Best wishes, Esger Renkema