Hi,

With the latest luatex change from
https://github.com/TeX-Live/luatex/commit/1566b63b338abbe38ed839fac9f2022ebbfa7d59
(and MKIV 2021-05-09 17:14:00) I get an input stack overflow:

simpleslides    > loading style Boxed
system          > command '\NormalHeight' is already defined
system          > command '\NormalWidth' is already defined
system          > command '\PictureFrameHeight' is already defined
system          > command '\PictureFrameWidth' is already defined
close source    > level 4, order 8, name
'/usr/share/texmf/tex/context/third/simpleslides/s-simpleslides-Boxed.tex'
close source    > level 3, order 8, name
'/usr/share/texmf/tex/context/third/simpleslides/t-simpleslides.mkiv'
fonts           > bodyfont '24.0414pt' is defined (can better be done
global)
metapost        > initializing instance 'metafun:1' using format 'metafun'
and method 'default'
metapost        > loading 'metafun' as
'/usr/share/texmf/metapost/context/base/mpiv/metafun.mpiv' using method
'default'
metapost        > initializing number mode 'scaled'
input stack overflow
mtx-context     | fatal error: return code: 256

MWE from the documentation:
\usemodule[simpleslides][style=Boxed]
\setupTitle[title={Title of the presentation},author={Name of
authors},date={Date of presentation}]
\starttext
\placeTitle
\SlideTitle{The first slide}
Write whatever you want.
\SlideTitle{The second slide}
Continue writing.
\stoptext

Does that mean the simpleslides module has some recursion problems?
I have tried a couple of themes but getting the same error.

Adam