Very odd. I still think something is conflicting with theme. I was looking around to see if I can get the theme so I can duplicate the issue, but it looks like you bought yourself a premium theme. Which makes it pretty hard to figure out on my end. Plus I don't even know if you can give someone a theme like that to debug on a localhost.
I went through the plugin's revisions to see what changes I made, and the only related things I see is changes in 'exclude current', page and term dynamics, and
adding wp_reset_postdata() and
wp_reset_query() functions to APLQuery class.
Are you using any 'include terms' in your taxonomies, and/or using 'Current Page' from your page hierarchy. Then are you using the exclude current function at all?
Lastly, leaves the reset function in the
APLQuery.php file. Which I thought would improve the sorting, but could be what's causing the problem. Plus, after WP's update, some fixes to WP_Query class cleaned up the issues that I was having during development, which is why I ended up added the reset functions to the current version.
If the first two aren't the issue, then I would try replacing APLQuery.php by extracting this new file in /wp-content/plugins/advanced-post-list/includes/class/APLQuery.php
the new file is linked on this page under APLQuery File Replace:
APL Version 0.3.b4 Page