When loading theme at start, the background change on lost of focus does not work

[patgro1]

I'm using the theme as a default. If i open neovim, the theme is loaded properly. When I vsplit, both window stays the same. Then when i change to another theme and switch back to night-owl, theme is acting properly and one window is colored with focus while the other one is colored with the out-of-focus background.

{
     "oxfist/night-owl.nvim",
     lazy = false,    -- make sure we load this during startup if it is your main colorscheme
     priority = 1000, -- make sure to load this before all the other start plugins
     config = function()
         -- load the colorscheme here
         require("night-owl").setup()
         vim.cmd([[colorscheme night-owl]])
     end,
 },

Nvim version:

NVIM v0.11.2
Build type: Release
LuaJIT 2.1.1741730670

   system vimrc file: "$VIM/sysinit.vim"
  fall-back for $VIM: "/usr/local/share/nvim"

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