Cyber Station boss hitbox glitch?

[ZV151/Timey (Yoshi)]

After the new patch a couple days ago, I was playing through the game and I encountered something infuriating. I was fighting the Cyber Station boss in my super form, got to its 2nd phase (after the fake-out with the capsule, y'know)... and then on the third hit, I somehow phased through the robot's hitbox and fell to my death in the bottomless pit behind the boss. That is NOT supposed to happen, and no such thing happened previously (aside from hitting the boss too early (i.e. before the robots charge at you), as the hitbox isn't active at that time)

In case anyone wants to replicate the exact conditions I was under: Solo, playing as Amy, used my super form the entire fight, got to the 2nd phase no problem. First 2 hits of the 2nd phase were fine, but the third hit was scuffed.

I replicated the conditions a few times and saw that double jumping makes no difference, the third hit is broken for some reason no matter whenever I lunge at him. I was able to save myself out of the death pit one time and hit him properly afterwards, but the attack phase lasted abnormally long afterwards. Weird.

Anyone else experienced this or something similar?