[Sailor Experience screen is blank]

Just letting you know I was able to reproduce this and it's a depth-sorting issue. I have a local fix ready for whichever upcoming patch this gets into.

[Patch Notes for 1.1.0.0035]

Also, I don't see anything about crew with multiple skills not having all of their skills level up completely or something like that, maybe that's still being worked on?

Not sure if this is what you're referring to, but crew only level up the skill in the role for which they are currently assigned on the ship, and normal crew (as opposed to captains) have a max of 4 total ranks across all of their skills.