Problem: On the Mac in the blueprint editor, when you drag off a pin or right click to bring up the actions window, the cursor blinks once in the search box and then immediately loses focus (feels like about 0.1s later).
Effect: This forces the user to drag off, then move the mouse over the search box, then click it, before you can start typing in what you are searching for. This makes blueprint prototyping SOOO MUCH SLOWER. Before you would just drag off a pin or right click and then immediately start typing. Since I spend the majority of my work blueprint prototyping – it makes ME sooo much slower. 
Behavior is the same on:
- 4.11.0 (binary)
- 4.11.1 (binary) (really hoped this would fix it, )
- Macbook Pro (Retina, 15-inch, Early 2013) NVIDIA GeForce GT 650M 1024MB
- Mac Pro (Late 2013) AMD FirePro D700 6144MB
- OS X El Capitan 10.11.4
Please let me know what other information or testing I can do to help resolve this issue. I’m willing to put in some significant time to resolve this, as it really affects me a lot.