Same here (Chrome, MacOS). I don't think this one is browser-dependent.

Related: https://meta.codidact.com/questions/278039

Here's another (recent) example of this happening: https://meta.codidact.com/questions/279760. Question list shows an edit by Moshi, question doesn't, but the history does. It also shows that the OP edited once, and that edit doesn't show either (though I don't know if it did before Moshi's edit).

I saw another example on Judaism, and then checked this recent edit of mine where it shows up. Two differences: the missing ones are on questions, and the missing ones (so far) are third-party edits (not by the authors). Can we find cases to isolate those variables?

@Monica: I just did an edit to my question, and I see the change notification "<1m ago". Now you or someone else should make a small edit to see if the bug appears.

Ok, it's not just third-party edits; mine showed up fine. New hypothesis: suggested edits produce this behavior. We need an edit suggestion from someone who can't edit directly. I have a sock; hang on.

@Monica: I was away from the computer between your two edits, so I couldn't see the result of the first. However, the second edit (that required someone else to confirm) caused the bug to appear. As it is right now, I don't see the edit indicator.

@Monica: I just tried an edit after yours, and that did reset whatever was causing the problem. I can see the edit indicator now, and I suspect everyone else can too. So this has something to do with the state left in the database after an approved edit, which is set correctly when an edit is done that does not require approval. I'm thinking this isn't hard to track down now that it can be reliably reproduced, and also reliably undone.

@Olin after my direct edit, the notice was updated correctly. (Should've logged that, sorry.) Then when I approved the suggested edit, it disappeared. It looks like it only manifests with suggested edits. I hope that, now that we know where to look, this won't be hard to fix.