Dear list, I have the following source: \definefontfamily [malayalam] [rm] [RIT Rachana] %~ [features=malayalam-two] \setupbodyfont [malayalam] \starttext \startTEXpage \tf അദ്ധ്യായം\\ \em അദ്ധ്യായം\\ \em\bf അദ്ധ്യായം\\ \em അദ്ധ്യായം \stopTEXpage \stoptext Using latest from 2021.07.06 18:49 and the following fonts: http://rachana.org.in/downloads/RIT-Rachana-Regular.ttf http://rachana.org.in/downloads/RIT-Rachana-Italic.ttf http://rachana.org.in/downloads/RIT-Rachana-Bold.ttf http://rachana.org.in/downloads/RIT-Rachana-BoldItalic.ttf I get a crash when using LMTX, but not with MkIV (in both Windows and Linux). I’m afraid it might be a bug. Could anyone confirm the issue? Many thanks for your help, Pablo -- http://www.ousia.tk