StringIndexOutOfBoundsException in refreshAppearances()

java.lang.StringIndexOutOfBoundsException: begin 0, end 481, length 1
    java.base/java.lang.String.checkBoundsBeginEnd(String.java:3756)
    java.base/java.lang.String.substring(String.java:1902)
    org.apache.pdfbox.pdmodel.interactive.form.PlainText$Paragraph.getLines(PlainText.java:209)
    org.apache.pdfbox.pdmodel.interactive.form.PlainTextFormatter.format(PlainTextFormatter.java:182)
    org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.insertGeneratedAppearance(AppearanceGeneratorHelper.java:585)
    org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.setAppearanceContent(AppearanceGeneratorHelper.java:420)
    org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.setAppearanceValue(AppearanceGeneratorHelper.java:238)
    org.apache.pdfbox.pdmodel.interactive.form.PDTextField.constructAppearances(PDTextField.java:262)
    org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm.refreshAppearances(PDAcroForm.java:327)