I am finding that the latest beta fails when asked to set ancient Greek using Thomas’ module and the MKII engine. The error message reads: ! Missing \endcsname inserted. <to be read again> \@@laagrpatterns \dodosetnormallanguage ...fcsname \??la \??la #1#2 \endcsname \edef \thenorma... \dosetnormallanguage ...ding :\currentmapping :}#1 {\dodosetnormallanguage {:... \setnormallanguage ...efalse \synchronizepatterns \ifdone \else \def \synchr... \docomplexlanguage ...age \currentdefaultlanguage \the \everylanguage \enabl... \complexlanguage ...edlanguage \docomplexlanguage \fi \else \showmessage \m!... ... l.78 ...et out the whole truth (\grk{>alhje'i[an]} ) for us and demonstrated ... ? The file worked with earlier versions. Alan