extension update manager does not find new version of plugin - Joomla! Forum - community, help and support

hello,

i implemented automatic updates plugin since first available.
however, joomla 3, update manager fails find new version.

any appreciated, here update xml file (3.0 section @ bottom, copied section works 2.5 , corrected targetplatform):

code: select all

<?xml version="1.0" encoding="utf-8"?>
<updates>

   <update>
      <name>content - embedchessboard</name>
      <description>embedchessboard: content plugin add chessboard in joomla articles displaying chess games</description>
      <element>embedchessboard</element>
      <type>plugin</type>
      <folder>content</folder>
      <version>2.44</version>
      <infourl title="embedchessboard documentation">http://extensions.joomla.org/extensions/sports-a-games/board-a-table-games/11510/</infourl>
      <downloads>
         <downloadurl type="update" format="zip">http://downloads.joomlacode.org/frsrelease/7/8/1/78109/embedchessboard-joomla-plugin-2.44-2.66.zip</downloadurl>
      </downloads>
      <tags>
         <tag>release</tag>
      </tags>
      <maintainer>paolo casaschi</maintainer>
      <maintainerurl>http://pgn4web.casaschi.net/</maintainerurl>
      <targetplatform name="joomla" version="1.6" />
   </update>

   <update>
      <name>content - embedchessboard</name>
      <description>embedchessboard: content plugin add chessboard in joomla articles displaying chess games</description>
      <element>embedchessboard</element>
      <type>plugin</type>
      <folder>content</folder>
      <version>2.44</version>
      <infourl title="embedchessboard documentation">http://extensions.joomla.org/extensions/sports-a-games/board-a-table-games/11510/</infourl>
      <downloads>
         <downloadurl type="update" format="zip">http://downloads.joomlacode.org/frsrelease/7/8/1/78109/embedchessboard-joomla-plugin-2.44-2.66.zip</downloadurl>
      </downloads>
      <tags>
         <tag>release</tag>
      </tags>
      <maintainer>paolo casaschi</maintainer>
      <maintainerurl>http://pgn4web.casaschi.net/</maintainerurl>
      <targetplatform name="joomla" version="1.7" />
      <client>0</client>
   </update>

   <update>
      <name>content - embedchessboard</name>
      <description>embedchessboard: content plugin add chessboard in joomla articles displaying chess games</description>
      <element>embedchessboard</element>
      <type>plugin</type>
      <folder>content</folder>
      <version>2.44</version>
      <infourl title="embedchessboard documentation">http://extensions.joomla.org/extensions/sports-a-games/board-a-table-games/11510/</infourl>
      <downloads>
         <downloadurl type="update" format="zip">http://downloads.joomlacode.org/frsrelease/7/8/1/78109/embedchessboard-joomla-plugin-2.44-2.66.zip</downloadurl>
      </downloads>
      <tags>
         <tag>release</tag>
      </tags>
      <maintainer>paolo casaschi</maintainer>
      <maintainerurl>http://pgn4web.casaschi.net/</maintainerurl>
      <targetplatform name="joomla" version="2.5" />
      <client>0</client>
   </update>

   <update>
      <name>content - embedchessboard</name>
      <description>embedchessboard: content plugin add chessboard in joomla articles displaying chess games</description>
      <element>embedchessboard</element>
      <type>plugin</type>
      <folder>content</folder>
      <version>2.44</version>
      <infourl title="embedchessboard documentation">http://extensions.joomla.org/extensions/sports-a-games/board-a-table-games/11510/</infourl>
      <downloads>
         <downloadurl type="update" format="zip">http://downloads.joomlacode.org/frsrelease/7/8/1/78109/embedchessboard-joomla-plugin-2.44-2.66.zip</downloadurl>
      </downloads>
      <tags>
         <tag>release</tag>
      </tags>
      <maintainer>paolo casaschi</maintainer>
      <maintainerurl>http://pgn4web.casaschi.net/</maintainerurl>
      <targetplatform name="joomla" version="3.0" />
      <client>0</client>
   </update>

</updates>

after trying different things, update under joomla 3 worked after reordering 4 <update> blocks , having first 1 targetplatform joomla 3.
probably bug, blocks should checked , order irrelevant.