I’m not sure what to suggest because if this is random, then it could be related more to the browser. Very hard to determine what is happening to you when that is the case. It’s also the first I’ve heard as well which adds to the puzzlement. I still have not been able to replicate it on my end. I’ve tried it in the ie mode of ie10, ie9, ie8, etc. I’m wondering if it could be a plugin you might be using because usually if something is not functioning, it’s often related to a plugin. Has anyone else experienced this when viewing your site?