#+call and strange behaviour

[Michael Welle <mwe012008@gmx.net>]

Hello,

in a file named test.org I have an elisp src code block and a line like
this:

#+call: test.org:hcw(d="foo")

C-c C-c on that line executes the code block just fine. Copying the line
to another org file and pressing C-c C-c results in nothing obvious. On
the other hand, putting a code block in this other org file C-cC-c works
as expected again on a line such as this:

#+call: other.org:hcwother(d="foo")

It seems like it doesn't work if one references a code block in a file
that isn't the current/own file of the reference. Any hints on this,
please?

Regards
hmw