Hi there as a newcomer in ConTeXt I installed according to https://wiki.contextgarden.net/Installing_ConTeXt_LMTX_on_MacOS/ and using TeXShop on macos as advised. However, I like to use STIX2-Fonts for Text and Math and hence my MWE to test which fonts are going to be embedded (CLI pdffonts): ————- \setupbodyfont[stixtwo] \starttext Test ß 1lIjJuQ \% § \& ?! VERSAL-ẞ- \|> --- 1234567890 --- // \placeformula[eqn:def-m] \startformula m = \frac{m_0}{\sqrt{1-\frac{v^2}{c^2}}} \stopformula \stoptext ————- Unfortunately the compiler throws an error — why is there a check of STIX2-fonts versions, why is that important? I checked and found /Users/hp/Library/Fonts/STIXTwoText-Regular.otf Version 2.12 b168 /Users/hp/Library/context-osx-64/tex/texmf/fonts/opentype/public/stix2-otf/STIXTwoText-Regular.otf Version 2.11 b159 Could you please advise for a work around? from the log: ————- fonts > otf loading > loading 'stixtwotext-regular.otf', hash 'stixtwotext-regular' otf reader > unknown version ' ' in file 'stixtwotext-regular.otf' fonts > otf loading > loading done fonts > otf loading > saving 'stixtwotext-regular.otf' in cache system > lua > compiling '/Users/hp/Library/context-osx-64/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/fonts/otl/stixtwotext-regular.tma' into '/Users/hp/Library/context-osx-64/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/fonts/otl/stixtwotext-regular.tmd' system > lua > dumping '/Users/hp/Library/context-osx-64/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/fonts/otl/stixtwotext-regular.tma' into '/Users/hp/Library/context-osx-64/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/fonts/otl/stixtwotext-regular.tmd' stripped fonts > otf loading > loading, optimizing, packing and caching time 0.002 lua error > lua error on line 1 in file ./Untitled.tex: registered function call [1129]: ...-64/tex/texmf-context/tex/context/base/mkiv/font-otc.lua:325: attempt to index a nil value (upvalue 'descriptions') stack traceback: ...-64/tex/texmf-context/tex/context/base/mkiv/font-otc.lua:325: in local 'prepare_ligature' ...-64/tex/texmf-context/tex/context/base/mkiv/font-otc.lua:770: in upvalue 'addfeature' ...-64/tex/texmf-context/tex/context/base/mkiv/font-otc.lua:899: in local 'enhancer' ...-64/tex/texmf-context/tex/context/base/mkxl/font-con.lmt:1269: in upvalue 'enhance' ...-64/tex/texmf-context/tex/context/base/mkxl/font-con.lmt:1291: in field 'apply' ...-64/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:263: in field 'load' ...-64/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:602: in upvalue 'otftotfm' ...-64/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:630: in function <...-64/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:629> (...tail calls...) ...-64/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:378: in function <...-64/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:366> (...tail calls...) ...-64/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:484: in field 'read' ...-64/tex/texmf-context/tex/context/base/mkxl/font-ctx.lmt:1336: in function <...-64/tex/texmf-context/tex/context/base/mkxl/font-ctx.lmt:1193> (...tail calls...) 1 >> \setupbodyfont[stixtwo] ————- Many thanks for your support. Kind regards Heinrich Paeßens Mobile +49 1512 123 9876 tel:+4915121239876 Business Card https://www.paessens.tel/img/heinrich-paessens_bc-2021-03-11_signed.pdf