10 legendary glyphs are missing

After updating the game, the number of legendary glyphs decreased by 10 pieces, although I didn’t spend them.

This is a translation question. Are you referring to crests used in elder rifts?

I mean legendary glyphs for use in the ancient portal to get 1*, 2*, 5* stones.

It is called ‘crest’ in English, not ‘glyph’.
I can understand why crest was translated as glyph because I am Korean.
If you translate it into English from your own language, it may accidentally be translated into a different word.
The best way to avoid confusion in communication is to change the language setting of Diablo Immortal to English and refer to the English name.
Ancient portal is Elder Rift in english
1*, 2*, 5* stone is legendary gem in english.

Did you exit mid run? If so they will be mailed to you

No, I didn’t quit in the middle of the game using them, it’s just that after the update there were 10 less of them.