Hi. After i upgraded easyblog to the 5.0.35 version i got again the issue that i already discussed and you fixed in this post: http://stackideas.com/forums/default-category-on-post-update-1
Fortunately i saved the composer.php file you sent me so i uploaded it again in /administrator/components/com_easyblog/includes/composer/ and now it works correctly.
But please be careful when you release a new version to include all the fixes.
Best regards