Get weird result in metahuman rendering

I tried to import a metahuman character to my existing project. I placed a strong spot light behind the character, and it looks like the photo below.

I tried to do the same with the third person character template, and there is no problem.

Is there any way for me to solve it?

Thanks !

Are there any emissive materials around the character? I have similar issues with light fixture assets that have emissive material for the bulb reacting with the metahuman hair