Can not change the enviroment

Hi everybody. I know that the question es silly but I am trying to change the enviroment in AO 2, but when I select any enviroment download for AO it no appear. Only I can use the first to enviroment that came with AO. Someone who can tell me if I need to made something additional to select the enviroment. Thanks a Lot.

Once the environment download is complete, all the environments will appear in the menu Environments available by right click on the viewport.