Random Sequence Player has a first Pop in animation during Play In editor

It seems that the first time an animation is played, the character pop into place.

• Create an AnimBP and use a Random Sequence Player, setup 2 animations, and shuffle mode checked. 

• add your blend time to be less than half the time of the animation
• It does blend correctly in animBP preview
• Place your character with anim BP set inside a level
• play in editor

• the first time of each animations, the blending will not happen.