Events Plugin Conflict with Media Library


I have been investigating a problem with my Media Library where the images are there but just can't be seen in the back-end Media Library.

I have identified this as a conflict with the Events Plugin. What is interesting is that as this is a multisite it appears to only happen to the root site (ie and not the sub-sites (ie

Can you help me understand what the problem might be?

Wordpress Mutlisite - 3.4.2
Events+ - 1.4.4