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I downloaded the Google free font ‘Vollkorn’ (https://fonts.google.com/specimen/Vollkorn) into an appropriate directory and ran mtxrun --script font --reload all went well, and the Vollkorn truetype fonts show up in the output of mtxrun --script font --list --all . However, the following input: \starttext \definedfont[name:vollkornregular*default at 14pt] \input tufte \stoptext fails, with the following output: system > ConTeXt ver: 2020.03.10 14:44 MKIV beta fmt: 2020.6.8 int: english/english fonts > otf loading > loading 'MYPATH/texmf/fonts/truetype/google/Vollkorn-Regular.ttf', hash 'vollkorn-regular' fonts > otf loading > loading failed due to read error fonts > defining > forced type 'ttf' of 'Vollkorn-Regular' not found fonts > defining > font with asked name 'Vollkorn-Regular' is not found using lookup 'name' fonts > defining > unknown font 'Vollkorn-Regular', loading aborted This is on Mac OSX. I don't recall this problem coming up before. Evidently the difficulty is that it is expecting an otf font and is confounded by the truetype file. The ConTeXt font system always bewilders me, but this time it's pretty specific. Help?