weirdness in toolbar in Confluence 5.8.5

[Jennifer Weber]

We've created a clone site where we are testing updating to Confluence 5.8.5 and getting all of our add-ons updated as well.  For the most part everything seems to be working swell, but there is an icon in my toolbar now that looks like it is being cut off - it's to the right of the icon for notifications. 

toolbar.JPG

Anybody seem this before and any ideas how to solve? 

Thanks so much!

[Guilherme V.]

Hey Jennifer,

It looks like the Zen Theme is having some problem to render its icons. You could uninstall it and install it again and see if it fixed. Or contact the Zen Theme's Team Support.