Shai - 7:58 pm on Oct 28, 2013 (gmt 0)
Half right. I think we are saying that even though the PageRank continues to change, those changes are not exported to display; whether Google tool bar PR or any other PR checker/plugins. I have not seen any reports of some toolbar plugins/extensions working while not working on others. I think you may be confusing this with the fact that Google has removed the PR tool bar option from every browser apart from IE?
In some rare cases, we have seen sites jump to immediate PR but these normally are sites that have existing link profile and have therefore not lost their PR in the first place. We have two examples of this.