Svg font is not displayed

Hello everyone, I am trying to create a svg font, but I ran into the problem that it is not displayed. I used svg files to create letters. It only works in Photoshop. To create the font, I used this manual Creating an SVG color font | Glyphs
Thanks in advance for the answer.

You say that the font works in Photoshop? Where else did you try?
Can you send me a sample file?

Im try with one letter “A” . I’m going to upload a screenshot and a file now.