Since my update to LMTX 2021-12-03 the following error occured: tex error > tex error on line 41 in file /Users/jan-erikhagglof/context/context-osx-64/tex/texmf-context/tex/context/modules/mkiv/m-database.mkiv: Missing \endcsname inserted <to be read again> \endlocalcontrol <argument> \c !separator <macro> \mult_interfaces_get_parameters_item_okay #1=#2,->\ifarguments \or \mult_interfaces_get_parameters_item_error \else \defcsname \m_mult_interfaces_namespace #1 \endcsname {#2}\fi <macro> \mult_interfaces_get_parameters_item #*#1,->\ifarguments \else \mult_interfaces_get_parameters_item_okay #1, \ignorearguments \expandafter \mult_interfaces_get_parameters_item \fi <argument> \c !separator={,}, \c !quotechar=, \c !commentchar=, \c !strip=\v !no, \c !before=, \c !after=, \c !first=, \c !last=, \c !left=, \c !right= <macro> \mult_interfaces_get_parameters_indeed #1]->\mult_interfaces_get_parameters_item #1 \ignorearguments \ignorearguments ... 31 [\c!separator={,}, 32 \c!quotechar=, 33 \c!commentchar=, 34 \c!strip=\v!no, 35 \c!before=, 36 \c!after=, 37 \c!first=, 38 \c!last=, 39 \c!left=, 40 \c!right=] 41 >> 42 % \let\currentdatabase\empty \the\everypresetdatabase % or just: 43 44 \setupdatabase 45 [\c!separator={,}] 46 47 \def\module_database_process#1#2#3% 48 {\edef\currentdatabasetype{#1}% 49 \edef\currentdatabase {#2}% 50 \edef\currentdatabasename{#3}% 51 \ifx\currentdatabasename\empty The control sequence marked <to be read again> should not appear between \csname and \endcsname. I have an older version of LMTX 2021-08-10 on my laptop that works fine on same document. Thanks in advance Jan-Erik Hägglöf