I've reached this checkpoint using vitality's crack where some gargoyles spam (i'm playing with an xbox controller) so i press RT to shoot, and if i press LB to grab them - it's insta death. I'm quite sure this is a trigger and no it doesent happen with the original exe ! In fact i just passed the checkpoint now using the backup exe, after one hour of "wtf why did i died??" >_>
Edit: That's also the reason i posted, me died countless times (Aarggh!) only to find out that there's something wrong with the crack. So yeah.. now waiting for someone else to confirm this