スキンが変更されない

command /skin [<offline player>]:
    trigger:
        if arg-1 is set:
            send request to "https://api.mineskin.org/generate/user/%arg-1's uuid%"
            set {_res} to response
            map json body of {_res} to {_json::*}
            set {_value} to {_json::data::texture::value}
            set {_signature} to {_json::data::texture::signature}
            # set {_skin} to skin with value {_value} signature {_signature}
            set {_skin} to new player skin with value {_value} signature {_signature}
            set player's displayed player skin to {_skin}
        else:
            send request to "https://api.mineskin.org/generate/user/%player's uuid%"
            set {_res} to response
            map json body of {_res} to {_json::*}
            set {_value} to {_json::data::texture::value}
            set {_signature} to {_json::data::texture::signature}
            set {_skin} to new player skin with value {_value} signature {_signature}
            set player's displayed player skin to {_skin}

command /skin [<offline player>]:
    trigger:
        if arg-1 is set:
            send request to "https://api.mineskin.org/generate/user/%arg-1's uuid%"
            set {_res} to response
            map json body of {_res} to {_json::*}
            set {_value} to {_json::data::texture::value}
            set {_signature} to {_json::data::texture::signature}
            # set {_skin} to skin with value {_value} signature {_signature}
            set {_skin} to new player skin with value {_value} signature {_signature}
            set player's displayed player skin to {_skin}
        else:
            send request to "https://api.mineskin.org/generate/user/%player's uuid%"
            set {_res} to response
            map json body of {_res} to {_json::*}
            set {_value} to {_json::data::texture::value}
            set {_signature} to {_json::data::texture::signature}
            set {_skin} to new player skin with value {_value} signature {_signature}
            set player's displayed player skin to {_skin}