[Plugin: CMS Tree Page View] 0.8.6 update broken

Hi, I just updated to 0.8.6 and now I can’t get to nested pages on the tree in my dashboard. I can open top level pages, but can’t see any others.
any idea what could be wrong? All was working fine until I updated.

thanks!
Will

http://wordpress.org/extend/plugins/cms-tree-page-view/