[NTG-context] \setupsynonyms textstyle=cap failing

Hi all, the following  minimum working example is properly typesetted with textstyle=bold, but it fails with textstyle=cap (ConTeXt version : 2023.09.26 18:19) A number should have been here; I inserted '0'. (If you can't figure out why I needed to see a number, look up 'weird error' in the index to The TeXbook.) mtx-context     | fatal error: return code: 1 It works on https://context-on-web.eu (ConTeXt version : 2022.12.22 22:17) \definesynonyms    [abbreviation] [abbreviations] [\AbbreviationsFull] \setupsynonyms     [abbreviation] [textstyle=bold] \starttext \contextversion \abbreviation{NTG}{Nederlandstalige TeX Gebruikersgroep} Test 1 : \NTG . Test 2 : \AbbreviationsFull{NTG}. \stoptext Any clue ?