How to Make a Character Customization button For color swapping

I assume you are not setting the new character right.

  1. get the player character, change the mesh material
  2. get the character class and Set the mesh material
  3. cast to the characterBP and set the material

I would try to get the class only (skip step 1 and 3), set the material and assign it then to the player

Btw within your set color function, you are setting the material for the same index. I think body or eye should be 0 and the other one should be 1. (depending in how many slots you have)