Weight Rigging Different for Mesh Thank you in advance to anyone who assists me with this, I have been stuck on this problem for two days now. I have the same bone armature along with identical hand meshes, one just mirrored. When I automatically weight the objects the left hand works perfectly while the right hand is attached to multiple fingers.
I tried searching for ways to fix this without manually weighing every finger as its very tedious, unfortunately I couldn't find a post with a way to fix this.
Left Hand that is working correctly:
[ https://gyazo.com/4b0aa45edfefcf9a3d083ab616887887 ]
Right Hand, which is copy, pasted and mirrored to the correct direction:
[ https://gyazo.com/ec044e1b62b559bcd2f65a68759bc04a ]
Here are the weights. Once again, an exact copy and paste. Yet automatic weight caught different sections of the hand.
Left Hand

Right Hand
Thank you to Nathan for mentioning normals. [ https://blender.stackexchange.com/users/24636/nathan ]
For anyone who may have this problem, you select your mesh and recalculate inside normals.
I used this video for reference [ https://www.youtube.com/watch?v=clzstqtN6YQ ]