The following crashes with LMTX (current version: 2020.08.03 14:25):

\starttext
\emph{Hola}
\stoptext

Log:

\emphasiscorrection ->\ifhmode \ifnum \currentgrouptype =\aligngroupcode

\else \expandafter \expandafter \expandafter \font_emphasis_look \fi \fi

<to be read again> \egroup

\egroup

l.2 \emph{Hola}

Is it a bug? \emph worked for older versions. Thank you in advance.

Regards,

Jairo