I asked my colleagues on the Clip team to investigate, and they report that they did not encounter any problems in 8.2.We'd like to get a copy of the XML file that fails to load in Premiere 8.2.
Also, please provide detailed step-by-step instructions for what you're doing in Premiere and when the error occurs. [Forgive me if the workflow is dirt-simple; I haven't had a chance to get familiar with Adobe Clip and the workflow between it and PPro.]