I updated the plugin to Version 5.0.4 last night and started a scan. It keeps getting hung up at the following step: [Apr 18 13:19:27]Scanning your site for the HeartBleed vulnerability. It's not 13:57 Mountain Standard Time and still saying the same thing.
I've reviewed the information on My Scans Don't Finish. What Can I Do?, took the steps and still no luck.