Mirroring bones not working correctly Hello I am having problems with my rigging in blender.



as you can see rotating my left arm rotates both the left and right arm, but when I rotate just the right arm it doesn't move any of the mesh.

 

I dont know how to fix this and was hoping someone could help me out. 



I used a mirror modifier to mirror the whole right side of my character, and I think this is causing the problem but I dont know how to fix it.
Fixed my problem, the mirrored bones were given a name with .001 at the end.
I took the .001 off every mirrored bone and it fixed my issue.