Thanks for bringing this to our attention Colin. We have opened and thought we resolved this issue several times since you brought it to our attention. Hoping that it will be resolved finally this week. If not then feel free to email me: firstname.lastname@example.org and I will gather some additional details from you.
For some reason this isn't consistent with the browser for all people but does seem to only happen when in non-logged in status which makes it more difficult to diagnose and resolve. Thanks for your patience.
The problem in mid February was resolved, but the issue has occurred again with the maintenance yesterday. This appears to be a recurring problem that only affects the QlikView summary not any others on the homepage.