Willi Egger schrieb am 18.08.2019 um 17:30:
> Hi all,
>
> there is an old thread concerning this issue from september 2015. It appears unfortunately, that this issue persists.
>
> You can reference to places inside a document, but references to an outside document are broken. The links do not work and no page numbers or texts are typeset from the external document.
>
> Can someone help me to solve this?
I tried your example and had no problem to get the page and section numbers
from the other document. What you have to ensure is that the tuc-file 
for the
other document you want to refer dies exist because context uses it to get
the values for the numbers etc.

Wolfgang