CChickman on "[Plugin: Wordfence Security] Upgraded to v5.0.4, but now hangs on Heartbleed scan"

I have upgraded WordFence to version 5.0.4, but now the scans hang when it gets to "Scanning your site for the HeartBleed vulnerability". Is this happening to others, and what is the solution? I have also just upgraded WP to version 3.9.
thanks in advance.

https://wordpress.org/plugins/wordfence/