When you are zoomed out when clicking a dropdown box on a blueprint node, the dropdown menu gets cut off on length and width. Length isn't that big of a deal as you can scroll but it does cut off the display of the full name of the option due to being cut off width-wise.
Did not happen in 4.13.1 (//UE4/Release-4.13/ CL# 3142249)
Discovered on and happens in 4.14.1 Preview 1 (//UE4/Release-4.14/ CL# 3167010)
Head over to the existing Questions & Answers thread and let us know what's up.