Well... I'm not sure what the issue is, then. However, it almost has to be something going wrong with your install of the game, because:
1) I can't reproduce it, and I'd definitely run into such a persistent bug
2) I'm not getting reports of anyone else having this issue
3) The error in the log very much looks like the result of a modding screwup (possibly from changing the sim_opponents.csv file to adjust what ships are available to fight against in "Run Simulation", but it could also be something else.)
i dont have it
If you can provide more information about what you've actually done, where you've looked, etc, I might be able to help. The above really doesn't tell me much - I'm
assuming it means that you performed the steps I outlined in a previous message, but I'm actually not sure whether that's the case, or whether you mean something else.
Come to think of it, you haven't explicitly confirmed that you did a clean reinstall in the way I asked. I'm assuming you did, but since I can't actually read your mind or look at your computer, I don't actually know. Basically, I need more details if I'm to figure out what's actually going on here.