Invisible Army (Bug)

[melodizing]

Ugh, this happens to me all the flippin' time, and it's really starting to get on my nerves.
At every single PotCO Tortuga Invasion, the undead army decides to go on and off from being invisible. It's only during Tortuga invasions, though!
Here's an example:



Right, so as you can tell from the compass, the undead should be everywhere around me, but are clearly nowhere to be seen. You can even see Tom in the background being attacked by something, but it is nowhere in sight. It bugs me, because then I can't attack them.
Grr!