Browser Data language is not valid

[adnansorg]

    "browser_data": {
        "javascript_enabled": true,
        "screen_width": 2048,
        "screen_height": 1152,
        "accept_header": "application/json, text/plain, */*",
        "timezone": "0",
        "ip": "XXX.XXX.XXX.XXX",
        "color_depth": "TWENTY_FOUR_BITS",
        "java_enabled": true,
        "language": "en-GB-oxendict",
        "challenge_window_size": "WINDOWED_600X400",
        "user_agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36"
    },

One of our customers passed the following browser_data object, with the language set to en-GB-oxendict

We got the following error immediately

{
  "three_dsserver_trans_id" : "2eb7fd89-2b16-4d1b-99a6-4c69b5d7cc0d",
  "error_code" : "203",
  "error_component" : "S",
  "error_description" : "Format of one or more Data Elements is Invalid according to the Specification",
  "error_detail" : "browser_data.language",
  "error_message_type" : "AReq",
  "message_type" : "Erro",
  "message_version" : "2.1.0"
}

Are we ok to trim this value to en-GB instead of en-GB-oxendict and will this cause issues during fingerprint and/or challenge phase?