The bugs I found:
1) Got the same 'invisible ships' glitch - not just NPC flags but even player ships...
2) Lost controll to work ship functions (Broadsides, Sail, Ram, Take Cover) - lost the ship due to a Spawn and coudln't hit it until I grabbed a cannon and it was too late
3) One of the three Ghosts (Seabeard in this case) was doing the 'floating trick' at tormenta on the mid-tier) and hard to hit
4) graphis were off twice (bad tenxtures), my shirt was green then red (and its a white shirt LOL)
5) a LOT less Navy out there in larger form (Frigates, Gals) - only light stuff and a few biggies (one man-o-war, a few monarchs.. thats it)
Thats all I got. I can sail from Tormenta again though and can walk out of Jail (coudn't after v3 patch) so meh... its another round of glitches.
My next test is the Boss Battle - myself I crash 50% of the time - and haven't been able to do crew battle since v3... will test later when not so sleepy