hi.this is a great plugin! i recently migrate to it , but in some cases , show blank thumbnail, even dont fill the blank page with default photo. some of my posts after the upgrading wordpress, lost their thumbnail , i think thats the problem , but when i choose thumbnail for those posts, the plugin still shows blank frame.
i used another plugin for related post before contectual , and when i repair old post thumbnail manually, that plugin showed that thumbnails.
can someone tell me why even when i choose thumbnail manually, plugin still dont shows that?
(sorry for my bad english language! )