Hyperwall on Elgg 2.3

Hi,

I'm am setting up Elgg 2.3 for a school project and doing some testing, but I am having problems with the Hyperwall plugin (5.1.0) when trying to post a picture or add tags. It goes through without any error messages, but the update shows only the text, not the picture or the tags. Any idea of what I can do to solve this?

Thanks