:action GotoClass not get cursor focus

when I use ":action GotoClass", the pop up menu not get cursor focus, as picture show below.

but when I use shortcut "Ctrl + N", the pop up menu get the cursor focus
Because I use ideavim to mapping those action to avoid use shortcut,something like below

noremap <leader>gc :action GotoClass<CR> 

but now, the pop up menu cannot get focus, I need to move my mouse or use shortcut

Does anyone know how to solve this problem?

ubuntu 16.04