anyway…your blend space is working as supposed I think…what you see is like a blend of 50% of both anims at the same time because you are in almost the middle of your timeline…if you move the position to the left you will see a blend more from anim A and if you move the time to the right you will see the mix more biased to anim B
The solution was quite simple. I just set the Simplify value in Blender to 0 (it was 1). And also changed the value in the Compression Error Threshold Scale animation settings to 10 (it was 1). Now the animations look exactly the same as in Blender.