When I use a resource pack, 32x32, I replaced one of the swords from another resource pack and got transparency on the sides

Put the summary of the bug you're having here
When I use a resource pack, 32x32, I replaced one of the swords from another resource pack and got transparency on the sides
What I expected to happen was...:
That my Minecraft sword would be fully textured.

What actually happened was...:
however there is transparency on the edges.

Steps to Reproduce:
1. Downloaded Faithful resource pack (32x32)
2. ... Downloaded another resource pack (LegendPVP)
3. ...Replace Diamond sword in Faithful with LegendPVP diamond sword
4. Get the bug