Hi,
When i try to use IsControlDown or any of the keys during my On Drop event i get an insta crash
Hey KhenaB,
Thank you for notifying us of this crash. I have attempted to replicate this quite a few times in 4.8.1 and was unable to get the editor to crash. Could you please provide me your complete reproduction steps as well as the crash attached to your next reply as a .txt document?
Looking forward to hearing back from you, thanks! 
Hey KhenaB,
I have not heard from you in quite a while and for this reason, I must close your thread as resolved for tracking purposes. However, if you still have questions regarding this topic, please feel free to reply back. For all other questions, please submit a new question to AnswerHub.
Thank you and have a nice day!
FYI I was able to reproduce this issue in greater detail, and in 4.8.3 and 4.9.0 Preview 2 if you want to investigate it: Editor crashes entirely if you use Is*Down in UMG - UI - Unreal Engine Forums
Thank you Brandon,
This has been taken care of by another specialist who has reported it as UE-17122.
Have a great day!