awesome font display bug about polybar-nord-theme HOT 2 CLOSED

btw, when I start polybar from terminal, it's the information:

But the bug: warn: Dropping unmatched character ️ (U+fe0f)
may be not belonging to the awesome font, it appeared before I use the awesome icon font.

from polybar-nord-theme.

Oh, I finally find my low-level error.

1. ws-icon-x is not consequent, so the char is not displayed.
2. I use icons don't belong to the Font Awesome Brand and Font Awesome Free.
   The correct approach is following:
3. sudo pacman -S gucharmap(if you have not installed it)
4. open gucharmap(字符映射表) and find Font Awesome 5 Brands or Font Awesome 5 Free
5. In the Unicode Block(Unicode 区块) option, find and select private space(私用空间)
6. In the top menu, select View(查看) option, select Only show glyphs from this font(只显示来自此字体的字形), and then choose icons you need, copy it to you config.
   It's my config:
   

So, it's my result:

from polybar-nord-theme.