I need your help for a problem that seems childish but that I can't solve.
I would like to activate a block (that is already activated for other content-types pages and works just fine) to show it up on a new content-type. I just checked the box in admin->structure->block->configure->visibility parameters for that specific content-type just like I did for others. However, it doesn't show up.
Here is a screenshot of block parameters config (you never know ^^).
This block is located in sidebar_second region. So I checked with dpm() if this region was set in both content-types.
Here I can see that is actually set for my content-type basic page where the block shows up well.
But here I see that my region doesn't exist at all and thereby my block doesn't appear.
I created a new test block and located it in sidebar_second region as well to determine if the problem is the specific block itself or the content-type page... Apparently, I guess it is the second solution because it doesn't show up neither.
Also, I tried to locate my blocks into the sidebar_first region (that already exists for my content-type testimonial). Unfortunately, it doesn't work neither. Of course, it works well on content-type basic page...
To make sure the page code is not overriden in my testimonial.module or template, I checked twice the hooks I implemented and all my templates files... I found nothing that could cause that problem.
Eventually, I googled my problem and found that bug report (closed because cannot be reproduced): https://drupal.org/node/1777072 but I think that it would be very unlucky as it happens...
To choose, it surely is a mistake that I don't see rather than an uber rare bug that happened to 10 people in the world xD
That's why I need your help, ô stackoverflow people!