Up to that point, there was no evidence or credible information to suggest that the Biden family was refusing to acknowledge their 4-year-old granddaughter.
It's important to be cautious when discussing personal and private matters of individuals, especially public figures like the Biden family, as they have a right to privacy and confidentiality. Speculation and rumors can often be misleading or untrue. Without verifiable and reliable sources, it is not appropriate to make assumptions or draw conclusions about private family matters.
If there have been any recent developments regarding this issue, I recommend consulting reputable news sources to obtain the most up-to-date and accurate information. Remember to respect the privacy and dignity of all individuals, including public figures and their families.