Pathfinding on large moving object

I have a project that requires AI to move around on a large moving ship. I currently have a large dynamic navmesh using generate near invokers only. My problem comes when the ship starts moving. While moving, the navmesh isn’t generating over the whole ship, if at all. How can I get working pathfinding on a large moving actor?

Here is someone with a similar problem, however, i don’t think it was resolved:

Here are some images:
ship stands still:
https://puu.sh/GMMOj/8c5db3d1bb.png

ship moving:
https://puu.sh/GMMOM/ef9d5a81cf.png