Are all of the hadiths in Kanz al-Ummal authentic?

The book "Kanz al-Ummal fi Sunan al-Aqwal wal-Af'al" by Ala al-Din Ali al-Muttaqi al-Hindi is a comprehensive collection of the Prophet's hadiths, peace be upon him. It includes authentic (sahih), good (hasan), and weak (da'if) narrations. Its author compiled what was reported on the subject from various Sunnah collections, including hadiths found in books that may contain weak or fabricated hadiths. He may also comment on some hadiths, clarifying their grade. Therefore, not everything mentioned in it can be considered authentic.