SharePoint Designer 2013 64 Bit – Freezing on Load

I have a question and when I search, I can’t seem to find the answer. Anytime I run SharePoint Designer, the application loads normally but when I attempt to load any site that are in the Recent List, it freezes. However, if it is a new site, it loads just fine. I am thinking there might be a cache issue? Does anyone know how to remove the cache for SharePoint Designer 2013?

Thanks! Jeff