Hopefully the attached screenshot will show the issue I am having. It is intermittent but when I start typing on a multicolumn within a grid (and I think I have seen this with the stand alone multicolumn as well), the drop down pops but the scroll bar is initialized at the bottom of the list. When this occurs, I am also unable to use my up/down arrow keys to navigate the drop down list so it is quite annoying.
This is on 2016 Q1.