Hi Hans,
with yesterday's beta, I get an error when calling a module:
tex error > tex error on line 65 in file
/home/tas/texmf/tex/context/third/simpleslides/t-simpleslides.mkiv: !
Undefined control sequence
<argument> \syst_modules_setup
\syst_helpers_double_empty_one_spaced #1#2->#1
[{#2}][]
<to be read again>
\par
l.65
55 \startmodule[simpleslides]
56
57 \unprotect
58
59 \setupmodule
60 [style=,
61 font=LatinModernSans,
62 size=17pt,
63 color=blue,
64 alternative=square]
65 >>
66 \usemodule
67 [simpleslides-fontsdefault]
68
Our module is trying to load submodules, in this case the file
s-simpleslides-fontsdefault.mkiv. We had something similar a while ago,
ConTeXt became more strict in the names it expected for modules, but
that was resolved. An older beta (2015.11.19 19:13) works; I may have
betas between these two on the computer in my office and can test those,
if that helps. The definition of \syst_helpers_double_empty_one_spaced
hasn't changed, AFAICS, and I couldn't see what caused the error in the
changes of file-mod.mkvi.
All best
Thomas