[Maillemom]

Davidfor: I am truly sorry for the confusion. I used the incorrect terminology, I meant collections.

The extra characters came from looking at the left side of the metadata plugboard screen where it shows existing plugboards.

When I transfer books, it does create a collection by author_name - series_name. In the collection, before it stopped working, it would copy the book (kepub) series_index - title. Now when I copy a book (kepub) it only gives me the title of the book.

These are the settings:

Metadata plugboards:
epub (kobotouchextended) {series} {series_index:0>2s| | -}{title}
kepub(kobotouchextended) {series} {series_index:0>2s| | -}{title}

Add your own columns:
(columns built from other colums, behave like tags
{author_sort:'re($,',\s', '_')'}{series:| - |}

KOBOtouchextended plugin:
File formats:
Read metadate from files on device
Use sub-directories

Save_template:
{series_index:0>2s| | -}{title}

Sending books to device:
Metadata management: Automatic management
Save template:{author_sort}/{title} - {authors}

Since it was working, I didn't make any changes so I don't know why it suddenly stopped working.

Thank you for your help.
Trice

Edited: transferring epub doesn't work either.