Dissolve material Not work on my character

Hi guys! I bought this awesome material kit “Material Functions Kit in Materials - UE Marketplace” , It work when i apply the materials on a box ( for example) but when i apply the material on my character i see a grey mesh and the material not work, can you help me please ? Thank you.

are the shaders still compiling and is your character properly UV unwrapped?

Yes the character have correct UV, if i apply another material on the character it work :slight_smile: And the materal is compiling because if i apply the dissolve material in a cube, it work :slight_smile:

The character have his material, when the character is dead the bluprint start a “set material” to change the material, it work with other material, but not with this dissolve material

UV size is 1:1