[Tomita]

I prepared some epub books in Calibre of an earlier version 1.13. As a metadata I added the series information for some books. I'm using Moon+ Pro on my tab for reading eBooks, and the import process was woderful. I got all my series in Moon+. Now, I updated the Calibre to 1.15 and now the series information is lost during the import procedure. I checked the content of the opf file inside the epub file and I noticed some differences. In version 1.13 the relevant lines looked like this:
<meta name="calibre:series_index" content="2.0"/>
<meta name="calibre:series" content="Galaktika"/>

Now in ver. 1.15 the appropriate lines are:
<ns0:meta content="2" name="calibre:series_index" />
<ns0:meta content="Galaktika" name="calibre:series" />

Probably Moon+ is not interpreting these lines.

After this I uninstalled Calibre 1.15 and downgraded it to 1.13, but even after this I got always the opf file with the series information as it is shown above with ver. 1.15 xml format.

Please, help! How can I get back to that opf format which is accepted by Moon+ reader? Or maybe you know some other solution how to feed the series information with Moon+. Thanks in advance!