Slider Values are not working inside of a blueprint

Slider Values are not working inside of a blueprint in 4.8 Preview 1.

User Description:

Problem with the numeric float/int boxes in the editor in Blueprints, if for example open the TPS Template and open the pawn character bp, and got to change the "Capsule Radius" using the the mouse to drag left<->right don't slide only one tick and after that you need to reselect and slide another time.

Also, could be the direct cause of this error:
https://answers.unrealengine.com/questions/224155/48-p1-change-pawn-capsule-sizes-problem.html

If a Capsule Component's 'Capsule Half Height' and 'Capsule Radius' are changed inside of the character bp in this manner, an error will be received on play (see screenshot 'EditCapsuleRadius01.jpg').

1. Open a new Blank blueprint project in 4.8 Preview 1
2. Create an actor class bp & open it
3. Select Class Defaults
4. In the Details panel, go to any numeric value and click-drag left & right to slide the value

Results: The value will not change in realtime but it will change by sometimes huge numbers only the mouse button is released

Expected: For the slider value to change in realtime