Simple
Minecraft:foil tag is not working in realms
it works and performs on single player, but once uploaded to realms. The "glint" goes away. Code is below
{
"format_version": "1.16.0",
"minecraft:item": {
"description":

{ "identifier": "us:unknown_soul" }

,
"components":

{ "minecraft:hand_equipped": true, "minecraft:foil": true }

}
}