On 8/14/2023 11:41 AM, Xavier B. wrote:
> After I run context (LMTX version) to my document (attached) I get this error:
>
> tex error       > tex error on line 540 in file ./dev.tex: The file ended when scanning an argument.
>
> I don't know how to start...
> Can anyone help me?
>
> Thanks,
> Xavier
>
> PS: I receive this error after upgrading to MKIV to LMTX. Before with MKIV I get no errors.
>
I suspect that LMTX is a bit more strict about parsing. You have omitted 
the required \par for each \head.

-- 
Rik