Plugin Text {{expand}} doesn't seem to work

I installed the plugin “Text Expander” and tried desperately to make it work, but I couldn’t. Perhaps my workflow is somewhere flawed. Here it is:

  • write a search query in a note (md file), such as {{file:Aristoteles lust}}
  • select the search query, in this case: {{file:Aristoteles lust}}
  • open the command palette (cmd+P)
  • search for "Text {{expand}}: expand”
  • click on it
  • result: NOTHING!

Am I doing something wrong? Help would be very much appreciated.
P.S.: The search query {{file:Aristoteles lust}} is valid since in the search function of Obsidian I get 6 results.

Did you have any Expander search above it?
Currently i think there is a bug in Text Expander. I can implement 1 expander per note only.
The first search will give the result.
The second search will not paste any result. The search pane show first search term. And ctrl+shift+I show error:

Uncaught (in promise) TypeError: Cannot read property ‘length’ of undefined
at TextExpander.eval (eval at (app.js:1), :255:125)
at step (eval at (app.js:1), :68:23)
at Object.eval [as next] (eval at (app.js:1), :49:53)
at fulfilled (eval at (app.js:1), :39:58)

I found what I was doing wrong. In my workflow I forget to make the last step: cmd+v (paste).

  • write a search query in a note (md file), such as {{file:Aristoteles lust}}
  • select the search query, in this case: {{file:Aristoteles lust}}
  • open the command palette (cmd+P)
  • search for "Text {{expand}}: expand”
  • click on it
  • digit ‘paste’ (cmd/ctrl+v)