Texture shows when using command /tellraw @s {"text":"1", "font":"universal_graves:gui"}. Resource pack is not auto-hosted.

Graves 3.4.3
Polymer 0.9.9
Fabric Loader 0.16.3
Minecraft 1.21

How was the resource pack loader? Through autohost, singleplayer or hosted resource pack?

I generated a pack, copied it to resourcepacks folder and enabled it. I can't use autohost feature because I'm using this mod to manage my resourcepack.