It's stance dependent. I know that Akira's, from the player 1 side, his last hit into the generator needs to leave him with his chest facing the camera. Otherwise the interactable with the pillar won't work. Sounds like it's the same situation here.
Player 2 side, his chest needs to be facing away from the camera.
It's about time I found some guaranteed combos on the scramble stage, but theres one BIG problem..........................they don't always work because they're inconsistent for some odd annoying reason!
Anyway, despite all of this shit I still wanted to share them.