when ı add new icon my old icon size changes

[SemihCelk]

Hello ,
When I try add new icon my old icon or old icons size changes.My file names area different.
1.Firstly I moved svg file to svg folder.
2.I wrote fantasticon src/assets/svg -o src/assets/fonts/icons --normalize --asset-types scss css html to console.
3.When ı type ng serve ng s --o to console ı noticed this problem.

fantasticon version = 1.2.3
Angular CLI version = 13.0.1
package Manager version = npm 8.19.1
would you please help me to solve this problem.

[LiuuY]

bc,
--normalize [bool] normalize icons by scaling them to the height of the highest icon