Hi Aren, thanks for the replies. I just noticed that I wasn't clear with describing the issue i encountered. I didn't notice that the gif trimmed the whole video.
My code is just a simple Debug.Log for the UIPopuplist.current.value for every selection change, this is using NGUI 3.10.2.
The issue is, on the first drop-down list Show(), I couldn't select the FirstOption on first click (can be shown in the video where nothing displays in the console).
Please see
video link here.
I have also attached the unity package.
I didn't have any problems with using NGUI 3.9.7, this occurred after updating to 3.10.x - (im using Unity 5.4.x).