So I have a clean copy of neoforge 1.21.1 with only two installed mods - Excavated Variants and Dynamic Asset Generator.
I want to translate Excavated Variants and changing two files:

.minecraft\globalresources\excavated_variants.zip\globaldata\excavated_variants\excavated_variants\ore\minecraft\coal_ore.json
.minecraft\globalresources\excavated_variants.zip\globaldata\excavated_variants\excavated_variants\stone\minecraft\andesite.json

In each of the files I added one line respectively:

"translations": {
"en_us": "Andesite",
"ru_ru": "Андезитовая"
},

"translations": {
"en_us": "Coal Ore",
"ru_ru": "угольная руда"
},

I load the game, pick up the andesite coal ore and it's still in english.
I really don't understand what I'm doing wrong. I deleted the cache files of both mods just in case, but it didn't help. I really need help.

Just in case, I'll clarify that "extract" is set in the configs..
{
"extract": {
"excavated_variants": "extract"
},
"from_resource_packs": {}
}