lookign for info on Boss battle glitches

[Angel Daggerfury]

I don't know, my game loaded, everyone on my crew was on the Black Pearl, I was swimming in the water instead underneath the Black Pearl, couldn't jump on the ship at all. I swam to the shore where the Black Pearl starts out being launched at & there's cannons on the shore that you can hit shift to use LOLOL. So I tried shooting, but all my cannons keep shooting into an invisible wall, coz I could see the dirt fly all around me when I fired LOL.