Yasnippets don't show up in pop up with completion.

[tslAndy]

A newbie to spacemacs here. I've added next content to .spacemacs file for enabling completion:

(auto-completion :variables
                      auto-completion-return-key-behavior 'complete
                      auto-completion-tab-key-behavior 'cycle
                      auto-completion-complete-with-key-sequence nil
                      auto-completion-complete-with-key-sequence-delay 0.1
                      auto-completion-private-snippets-directory nil
                      auto-completion-enable-snippets-in-popup t
                      auto-completion-enable-sort-by-usage t)

The problem is snippets don't show up in pop up window, only keyword completion. Yasnippet package is working, with Space -> i -> s it show up snippets, but non in pop up. I think this can be some problem with company, but I am not sure. How can I fix it? Thanks for help in advance.