Gpt-4-1106-preview Messes up non-ascii characters in functions calls

When I request a function to be called, parameters of the called function have malformed / missing UTF-8 characters, sometimes HTML entities are returned instead.

Example request

{
  "model": "gpt-4-1106-preview",
  "messages": [
    {
      "role": "system",
      "content": "You are a English - German translator. Reply with the trnslation of user's prompt."
    },
    {
      "role": "user",
      "content": "These violent delights have violent ends\nAnd in their triumph die, like fire and powder,\nWhich as they kiss consume. The sweetest honey\nIs loathsome in his own deliciousness\nAnd in the taste confounds the appetite.\nTherefore love moderately; long love doth so;\nToo swift arrives as tardy as too slow."
    }
  ],
  "temperature": 1.0,
  "functions": [
    {
      "name": "showResult",
      "parameters": {
        "type": "object",
        "properties": {
          "text": {
            "type": "string"
          }
        },
        "required": [
          "text"
        ]
      }
    }
  ],
  "function_call": {
    "name": "showResult"
  }
}

Output:

{
  "id": "chatcmpl-8IFzJDMdQ0DS2HsrRErCglSlouoep",
  "object": "chat.completion",
  "created": 1699362053,
  "model": "gpt-4-1106-preview",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": null,
        "function_call": {
          "name": "showResult",
          "arguments": "{\"text\":\"Diese gewaltt�tigen Freuden haben gewaltt�tige Enden\\nund sterben in ihrem Triumph, wie Feuer und Pulver,\\ndas sich beim K�ssen verzehrt. Der s��este Honig\\nist in seiner eigenen K�stlichkeit abscheulich\\nund verwirrt im Geschmack den Appetit.\\nLiebe daher m��ig; best�ndige Liebe tut dies;\\nZu schnell anzukommen ist genauso verz�gert wie zu langsam.\"}"
        }
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 133,
    "completion_tokens": 115,
    "total_tokens": 248
  },
  "system_fingerprint": "fp_a24b4d720c"
}

The exact same request works perfectly fine when I use gpt-4 or gpt-3.5-turbo.