PC Flying Dutchman still randomly poofs!

[Sprite]

Steam or GOG

Steam

Single Player/Multiplayer

Multi

Operating System

Windows 7

Terraria Version

1.4.0.3

Controls Used

Keyboard/Mouse

You guys didn't really fix it. When fighting the Flying Dutchman it still has the random chance to poof, reappear with less cannons, poof again, and continue this cycle infinitely. It just happened to my partner and I in our world.
We were fighting with the Daedalus Stormbow, Blade Staff, Queen Spider Staff, and Endless Quiver arrows.

 

[Leinfors]

Does it still give progress towards the invasion meter when this happens?

 

[Sprite]

Does it still give progress towards the invasion meter when this happens?

No. It just poofs in and out of existence. The first one didn't do this, and then the second one spawned and began the poofing shenanigans. We were at 98% when it spawned.