The problem is the slice isn't found if created with a template for
example
the first tiddler:
 name:
  template
 body:
  data1:firstword
  data2:secondword

the second tiddler:
name:
 FirstDataTiddler
body:
 <<tiddler template with:firstword secondword>>

the third tiddler:
name:
 report
body:
 <<tiddler [[FirstDataTiddler::data1]]>>
 <<tiddler [[FirstDataTiddler::data2]]>>

The bug is parsing the tiddler looking for the slice, before expanding
the macro, I think.

I can confirm that transcluded slices are not recognized.
However, I'm not entirely sure whether this sort of recursive evaluation
should be supported.
So I wouldn't consider this a bug - it's more of a feature request
(which doesn't make it irrelevant, so thanks for reporting this).

Could you raise a ticket:
     http://trac.tiddlywiki.org

-- F.

I'm using the feature to index hardware stock which isn't a normal
use, but in my view a macro should be treated by a preprocessor to
expand, before the code is evaluated, so the slice is effectively
there when referenced. Anyway, there may be a better way to "clone" a
template, to copy tags and all. I just don't know it yet.
On http://trac.tiddlywiki.org/wiki/register I'm getting "Page register
not found".
Thanks.

On Jul 2, 10:19 pm, FND <F...@gmx.net> wrote:

Sorry, the link was broken - I've fixed that so it's pointing to the
correct location now:
     http://trac.tiddlywiki.org/register

-- F.