[Bug report] Setting value of bool variable in level sequence

[X_Starter_X]

I found bug in level sequence.

Steps to Reproduce

1. Create actor
2. Add bool variable, name Enable, Instance Editable and Blueprint Read Only
3. Create function, name SetEnable, with bool argument NewState

5. Add this actor in scene
6. Create in scene new LevelSequence
7. Add this actor in LevelSequence
8. Variable ** Enable ** can add a key in the timeline
9. This key calls function SetEnable
10. Enjoy!