It appears that in versions 1.14.2 and 1.14.3 the revision graph does not show the revision of the working copy. Sometimes it will also highlight the wrong revision (I mainly see it highlighting the revision of the trunk which I have created branches from.)
If I get it to show all revisions it will highlight the correct revision it is just when the 'Show All Revisions' option isn't ticked that it doesn't show the current working copies revision.
I have rolled myself back to v1.14.1 and it is working fine.
Let me know if you need some system specific information to help debug this.