[Piotrsko]

Any time you light an engine you have limited possible outcomes: works up to commanded power (which may or may not be up to over 100% rated), works partially, doesn't work, spontaneously disassembles. You can't model it, and testing it on a pad is different than free testing under load. Sounds to me like they didn't get the actual fault fixed, must be counter intuitive or too much pressure to launch ( they drilled ventilation holes for chrissakes) I think too much gotta launch it, now!!! Is the failure, or at least as it looks from here. Daddy has too many fires going and lost focus and had a tantrum. Wouldn't be the first time*. Good thing he doesn't use solids because at those power levels, there would be no launch site available to find. Makes the dinosaur extinction event.

*Ask any long term giga factory employee