Refund status "under review" with a link to Topic 151?
Due to some special circumstances, I used TT but filed by paper with specific forms under the guidance of a tax attorney. When checking the filing status, the following was shown:

Does this mean that my filing is "being reviewed" to determine whether there is a dispute from IRS or that IRS has already concluded that there is a dispute? The Topic 151 relates to dispute process, which was what confused me. If in fact it is still being reviewed, I may never need 151. If the IRS concluded that they dispute my filing, then am I simply waiting for a letter?
Thanks.