How can you identify indiviudal items from a Json Diff back in the original Json that you compared?

Question

(Slightly rephrased to make it more understandable :))

I have a need to compare two jasons, I want to display the diff, like we're used to see it in a typical file compare tool.

I have used the JsonDiffPatch from github (benjamine/jsondiffpatch), but could essentially use any other package. I get a diff

                var diffPatch = new JsonDiffPatch();
                diff = diffPatch.Diff(actualJson, expectedJson);

this diff makes total sense, it shows exactly which items are in conflict.

This I can then flatten, and run through, but I fail to identify each individual item in this dictionary in my original expectedJson:

                var values = diff
                    .SelectTokens("$..*")
                    .Where(t => !t.HasValues)
                    .ToDictionary(t => t.Path, t => t.ToString());

                foreach (var v in values)
                {
                    Debug.WriteLine(v.ToString()); 

I was hoping to be able to look up the same path in my original 'actualJson' json snippet, so I could color code it in my output to indicate a conflict. But when I try to select by path from my actual, SelectToken don't seem to be finding anything (here diffActual becomes null):

                    var diffActual = actualJson.SelectToken(v.Key);

What am I missing here? :) Shouldn't the path of the diffPatch elements be the same as for original, or is it lost in the flattening? I clearly need some clues here.

Could there be other more obvious ways to do this?