This resource updated today.
The RSV Catholic Edition has the chapters of Esther strangely out of order.
Something got messed up big time! Even the table of contents reflects it.
I'm not sure there really is an issue here. See https://en.wikipedia.org/wiki/Book_of_Esther#Additions_to_Esther and the remark that numbering differs between translations.
Thanks NB. I would've never thought that to be a possibility.
Everything is fine - the verse mapping of Esther is something I frequently test. The way to verify is to run multiple versions in parallel ... you will see Part A, Chapter 11, Chapter 1, and multiple verse parts (NJB) as legitimate notation for the beginning of Greek Esther.