I'm experiencing this issue on both version 1.3 and 1.4 of the uncode theme.
After installing a fresh demo on a fresh wordpress install, featured images do not always display.
On this page you'll see that only 2 featured images are displaying:
http://52.32.11.89/test-nouveau/index.php/blog/blog-full-width-metro/
Clicking through to one of the images is not displaying shows that the featured image is displaying correctly for the masthead:
http://52.32.11.89/test-nouveau/index.php/2015/01/14/working-from-your-home/
Except, further down the page there are more images not displayed that are set as "Single Media" blocks in the post.
I have all "show media" options that I can find set to "yes" in the theme options screens.
After installing a fresh demo on a fresh wordpress install, featured images do not always display.
On this page you'll see that only 2 featured images are displaying:
http://52.32.11.89/test-nouveau/index.php/blog/blog-full-width-metro/
Clicking through to one of the images is not displaying shows that the featured image is displaying correctly for the masthead:
http://52.32.11.89/test-nouveau/index.php/2015/01/14/working-from-your-home/
Except, further down the page there are more images not displayed that are set as "Single Media" blocks in the post.
I have all "show media" options that I can find set to "yes" in the theme options screens.