I have some blank entries in the captain's log (accessed by pressing L). Clicking on a blank entry shows the same text as the last non-blank entry I clicked (minus "Times completed" and "Best time"). I'm not sure what is causing this.

I've figured out that the blank entries come from Foundry missions.

To reproduce this bug:
1. Complete a Foundry mission.
2. Press L to access the captain's log. There should be an entry for the Foundry mission you just completed.
3. Exit the game.
4. Restart the game and log on again.
5. Press L to access the captain's log. The Foundry-mission entry is now blank. Clicking on the blank entry shows the same text as the last non-blank entry that you clicked (minus "Times completed" and "Best time").