GUI artifacts when I expand UE4 4.7.2 on extended desktop.

Essentially when drag UE4 4.7.2 interface to an extended desktop GUI breaks. For example hover states of all menus do not match with cursor and dropdown menus become detached from menu itself. It opens 50 - 70 px below where I clicked dropdown menu. See my system specs below. I am curious if this is a mac related issue.

MacBook Pro (Retina, 15-inch, Mid 2014)
2.8 GHz Intel Core i7
16 GB 1600 MHz DDR3
Intel Iris Pro 1536 MB

Hi cschweal,

Thanks for report! This is a known issue reported here:

We have a bug report in for it already (UE-9848), and devs are looking into it for a potential 4.8 fix.