Hi,

starting from some versions of dnn that we no longer able to add new modules to pages of all sites.

The problem has two behaviors:

1 - selecting "All categories" from new module tab, the module dropbox will contains only html 

2 - adding html module to the page, an "Extension" module is inserted instead of that. I noticed that Extension is the first module in "Admin" category

Image of problem: http://s29.postimg.org/rd5uuaibb/dnn_...