New glyphs don't show in Charmap

[Extraneous]

Hi everyone.
I want to add new glyphs to my font. I have other font with these symbols, and I want to move symbols to my font. Symbols are placed in “Private use” area, uE720-uE730.
I create new glyphs in my font, specify codes and names, save the font and install to system.
Windows see new symbols: when I write symbols by old font in Notepad and change font to new - this symbols is displayed correctly (previous it displayed as rectangles).
But I don’t see new symbols in Charmap.exe. In old font these symbols is displayed correctly.

Apparently, I want to “enable” or “verify” new glyphs, but I don’t know how.
Font file is atttached.
GOST_Common.ttf (134 KB)

[ErwinDenissen]

It works just fine here. Maybe you need to reboot your system.

[Extraneous]

Reboot does not help, but I found a solution of the problem

I deleted and re-install font and new symbols is displayed.

This font has already been installed for my computer, and Charmap doesn’t see new symbols, I think. You install the font for the first time, and charmap works correctly.
Thanks!