Could you explain the discrepancy concerning the 52nd chapter of Shri Sai Satcharita and the evidence for it presented in the preface?

The preface in Chapter 0 details a notable issue with the book's conclusion. While a verse in the first chapter promised a summary and conclusion in Chapter 52, this content is absent in the published version. The text presents several pieces of evidence for this. The slips of paper Annasaheb wrote on, which came for checking, lacked verse numbers and had page numbers starting from 20, suggesting the initial portion was lost. Furthermore, the published Chapter 52 contains different material, focusing on the Sadguru's greatness. Annasaheb's own statement in a magazine that the book was 'complete' also implies he had finished the summary, which must have then been misplaced. To rectify this, a new concluding chapter was added as Chapter 53.