Vehicle blueprint

I made a deform-able car in unreal engine using morph targets and added a collision cube and generate overlap event on that cube connected to a timer and then connected timer to set morph target to play the animation on collision and it does but the problem is when I place more than 3 morphs(Currently I have about 8) blueprint gets confused and plays two and more than two morphs at a time rather than playing the morph which gets overlapped so I used print string to see what happens and I found that after collision of one box collision it thinks another one is collided too and thus it plays both the animations at the same time. How to avoid this? Please help me out and if you have a better idea to deform a car please share it here. Thank-you for your precious time.