Fade-in effect inside material leaving holes?

Hi. I’m trying to make a fade in effect for when creatures in my game spawn. However, after applying the dissolve texture, I get holes in the final result when fading in. I’m super new to materials and I could not understand why this is happening. Could someone point me to the right direction please?

Example of whats happening:

This happens not to all my meshes but specific ones, here is how I have the material set up:

And the fade texture I’m using:

I believe it has something to do with the part in my second If statement where I set a black 3vector to A == B, because if I change that to another color it fades in fully, BUT I need it to be black so I can fade into original base color, if I could say clearly. Thanks for any help!

OK, after working around with it I figured the problem was in the timeline which I use to set the scalar value over time. Setting the end key in the timeline to something like -0.1 instead of 0 fixed my issue.