Rik Kabel schrieb am 25.05.2020 um 21:50:
>
> I cannot get a PDF/A document produced with the latest MkIV beta 
> 2020.05.18 16:46 (LMTX works without issue). Using the example from 
> the wiki (https://wiki.contextgarden.net/PDF/A) I get the error stating:
>
>     <inserted text> ... \p_file {\backendparameter {xmpfile}}\ifempty
>                                                       \p_file \else
>     \clf_setxmpf...
>     \setup_backend ...end [#1]\the \everysetupbackend
>
>     l.11 ...ISO coated v2 300\letterpercent\space (ECI)]
>     mtx-context     | fatal error: return code: 1
>
>
> Removing either of the \setupbackend instructions still results in the 
> same error.
>
> Same issue for PDF/X.
>
> Is it a bug, or is it me?
>

It's a bug, there is a check in the MkIV version of the code which 
should be only in the LMTX version.

Wolfgang