Hi!
Yesterday I encountered a similar problem.
Default page was changed from com_frontpage to blank static content page.
When JoomSEF turned off everything worked fine, but if I turn it on and type in address line something like domain.tld/ I see contents of com_frontpage.
After reading this topic (and some other forums), and found no solutions, I have analysing sources of JoomSEF, and find a solution in 10 minutes.
So I'm very surprised that the tech support didn't find it so long, or maybe find, but for $$$, I dont know that.
Finally, exactly
solution:
In
/components/com_sef/joomsef.php, approximately on 70 line, find:
$query = "SELECT `id`,`link` FROM #__menu WHERE `menutype` = 'mainmenu' AND `published` > 0 AND `link` LIKE '%com_frontpage%' LIMIT 1";
and replace it to:
$query = "SELECT `id`,`link` FROM #__menu WHERE `menutype` = 'mainmenu' AND `published` > 0 ORDER BY `ordering` ASC LIMIT 1";
I apologize to the developers for changes in the code, but it really works!