I am experiencing a reduction in the number of posts shown in the Recent Posts box from 10 to 3, even though 10 is set in the control panel. There have been no changes made to UBB 7.5.6p1 or my web host (PHP 5.6.27, MySQL 5.7.15) in many months.

Here is the forum link: http://j30.us/ubbthreads/ - the posts island is on the right side

I have confirmed the following settings on the posts island in the control panel:
Cache Time: 5 minutes
Always Build: unchecked (I do not use external islands, only in UBB)
Island Type: Recent Posts
Number of Topics/Posts to display: 10
Source Forums: I have the desired forums selected here with plenty of content

I deleted the cache and files in templates/compile directories (via cPanel) then using UBB control panel rebuilt all the content. Still no change - I just see 3 posts listed.

Anyone have ideas on how I get this back to display the 10 posts it used to have?