Adjusting/Rotating bones for individual animations?

Hey guys, so I have a model of a boss I made in Blender with its own custom rig. After following some tutorials for importing models from Blender into UE4, I imported my character to only notice that my character’s skeleton was rotated 90 degrees along the x axis. I then noticed my animations were all wonky. Some animations would be right side up, working fine, while others are upside down, and some limbs are fused together. I can fix this by adjusting the bones, but I notice that adjusting bones for individual animations affects all of them. Is there a way to adjust the bones for individual animations instead of for all of them?

Okay, I fixed the problem. So the problem was that I had to update Blender. The version I had was 2.71, and apparently that version has issues. Once I updated to 2.74 and used their FBX exporter set to version 7.4 binary, everything came out facing the correct direction, and applying the right root motions.