Attachment plugin // No search hits // need help

Hi all,

is there someone who can help me to solve a problem with the attachment plugin?
I have done the example from documentation (here) and this works out fine.

Using the same POST to create a new document with a new attachent works too. I'm using that pdf as attachment.
What NOT works is finding a hit from inside that attachment.

I'm using the following search, e.g.:

POST /trying-out-mapper-attachments/person/_search
{
"query": {
"query_string": {
"query": "Elasticsearch"
}}}

Used ES-Version is 2.1.1

Many thanks and best regards
Jochen

Do you see anything in logs?