Here's a 24 second video [no audio] showing the issue http://screencast.com/t/7G1Pz5mjBhM

Situation:
We have a dozen or so content types and moderation works fine on all. Except on some [small minority] of PAGE nodes we have the following issue.
1.. Take a published PAGE node
2.. Select New Draft
3.. Make changes and set the Publishing Options to Needs Review
4.. Save the node
Instead of seeing the draft [in the state of Needs Review] you are taken to a page that shows the edited content as live and the View Published tab is active. Even more odd, the status shows Draft even though this is the View Published tab.

This issue does not occur on NEW page nodes, only older ones. I can find nothing odd with the nodes that show this symptom, nor can I find some shared characteristics among the afflicted nodes.
We had thought that maybe this was only happening to nodes that had been migrated into the site via MIGRATE module, but we discovered newer nodes [post migration] that are afflicted as well.

I'm not thinking that WB actually has a bug. I'm guessing that there is something about these nodes that is interfering with the WB process. So I'm throwing this out here for any ideas.