So basically, Setsuki and Geiger both do their forward A normals, they will go through eachother, and the attacks will whiff. The characters appear on different sides of eachother during the animation, and then return to normal.
This obviously only happens when they stand as close as possible and walk towards eachother.
Might be an issue with either character or both, but it might happen against other characters with far reaching animations.
game version 0.11591