The Stepper example on the wiki,
<http://wiki.contextgarden.net/Stepper>from which the following
snippet comes,

\usemodule[pre-60] % use the stepper
\setuppapersize[S6][S6]

\defineoverlay[invoke] [\overlaybutton{InvokeStepper}]
\setupbackgrounds[text] [background=invoke]
\setupinteraction[state=start,click=off]

\starttext
ex nihilo
\stoptext


fails here with the following error:

! LuaTeX error
...eXt-beta/tex/texmf-context/tex/context/base/lpdf-mis.lua:146: attempt to
call upvalue 'pdfaction' (a nil value)
stack traceback:
...eXt-beta/tex/texmf-context/tex/context/base/lpdf-mis.lua:146: in
function '?'
...eXt-beta/tex/texmf-context/tex/context/base/lpdf-ini.lua:700: in
function 'run'
...eXt-beta/tex/texmf-context/tex/context/base/lpdf-ini.lua:722: in
function 'finalizepage'
[string "\latelua "]:1: in main chunk.


Though I am using the latest beta, I do not think this problem caused by
changes in the latest release. I have attached the log file for those who
are interested. Any suggestions how to rectify this problem would be much
appreciated.

With kind regards,

Michael Guravage