Node.js fontkit将pdf lib文本字段格式化错误

我试图在使用自定义字体的pdf中设置一些文本字段

当我设置文本字段的文本，然后嵌入自定义表单时，一些文本突然被分割。单词“loft et”突然变成了“loft et”。如果在创建pdf后单击文本字段，则会出现此显示。 这里是我加载字体的地方：

  const fonturl3 = "http://localhost/pdflib-invoice/SourceSansPro-LightItalic.ttf";
  const fontBytes3 = await fetch(fonturl3).then((res) => res.arrayBuffer());
  pdfDoc.registerFontkit(fontkit);
  MessageFont = await pdfDoc.embedFont(fontBytes3);
  
  let form = pdfDoc.getForm();
  const textField = form.createTextField('Message');
  let text = 'See here loftet, ser det ligesom nissen eller er det noget andet. \nDet her virker også. Det er jo vildt'
  textField.setText(text);
  textField.addToPage(page, {
    width: 500,
    height: 100,
    x: 55, 
    y: 400,
    borderWidth: 0
  })
  
  textField.enableRichFormatting();
  textField.updateAppearances(MessageFont);
  //textField.enableReadOnly();
  console.log(MessageFont.encodeText(text));

  // Serialize the PDFDocument to bytes (a Uint8Array)
  const pdfBytes = await pdfDoc.save()```

When I enableReadOnly, the textfield is locked as it should, but some words looks wrong. Is there someway to "emulate" a click (which is my only idea), or is there anything else I can do?