Had a look. Some findings:

• nothing in the Staley set has been pulled or re-redacted.
• the one real anomaly is chronological: volume runs 26 to 70 emails/month through October 2011, then down to single digits and stays there through 2013, 17 months before Staley left JPMorgan.
• Mandelson passage has no Bates number, because it was never in a government production, it came from an independent Bloomberg article, They obtained it from Epstein's personal Yahoo account, a mailbox that never went to Congress or DOJ.
• Staley transcript was interesting: 6 EFTA numbers were produced by the HOC, and (still) unreleased in the official DOJ corpus. All six are internal JPMorgan compliance records: the 2003 Vanity Fair due diligence email, the Erdoes exchange three days after Epstein's 2006 arrest, the "Rapid Response Team" memo logging $40,000 to $80,000 cash withdrawals several times a month, the 2010 sex-trafficking due diligence report. They sit inside a single 126,662-number gap that accounts for 98.8% of DS12's Bates span, a band where DS12 holds nothing at all. So this really shows beyond question that the large blacked out and missing bates numbers from DS12 are unpublished to protect perpertrators, not victims.

I dont think I need my tinfoil hat for this: the fact that the 12th dataset is so small and that DS13 > DS20 are scaffolded on the server, but never released. So, to state the bleeding obvious: the war in Iran started to prevent the most damning datasets to be released.

I should add that today there is another Guardian article regarding the now-public transcript of Jes Staley's closed door interview with the House Oversight Committee on July 24. It mentions two separate email exchanges by quote, and all are easily found via search on the DoJ site, usually in multiples, and of course specific Bates numbers are in the transcript as well. (I prefer text search because if you open all the results you'll often get the whole long email chain, but with Bates number you at least have that one isolated quote.)

However, in this case almost all of the text search results include the wording, "Confidential Treatment Requested by JPMorgan Chase" somewhere on the document. I've spent many hours in the legal cases in the files, and even in cases that are now removed -- like the entire probate proceedings in the USVI -- I have never seen that before for any other individual or organization. If I venture to guess, that notation is likely a relevant factor in where the other now-absent Jes Staley emails have gone.

EDITED TO ADD: Just for the hell of it, I searched the DoJ site for the text "Confidential Treatment Requested by JPMorgan Chase" exactly as seen on the documents I looked at from the transcript, not even stripping the capitalizations, and it came back with 8602 hits. Many also have a JPM-SDNY Bates number but not all, which tends to suggest that all material related to litigation between SDNY and JPMorgan, or at least whatever JPMorgan provided, has been labeled with that request, but it has little/no prohibitive weight in itself. So for myself, I am back to asking why those specific emails, the contents of which are already public, have been removed from the public-facing DoJ site.

As I said, the DoJ is no foreigner to removing published materials again. The idea that the search failure could have technical reasons is something to consume with a grain or two of salt, but not impossible.