Hi,

Consider the following MWE:

\definetyping[T]
\definemode[mode][yes]
\starttext
\doifmode{mode}{%
  \startT
    Bla
  \stopT}
\stoptext

Compilation with the currently latest ConTeXt LMTX (ver: 2021.03.17 17:46
LMTX  fmt: 2021.3.18) fails with:

tex error       > runaway error: end of file encountered
mtx-context     | fatal error: return code: 1

Compilation is successful if I replace doifmode{mode}{...} by
\startmode[mode]...\stopmode.

Is there anything I'm missing? (This could be a bug.)

Cheers,

Christoph Reller