Opened and tested the first two sandbox OOBs with no errors. However, I did find an error with the 'Options' 'in game' screen. I fixed it with the following attachment, I'm assuming you (Zeke) didn't need any lines except for the Splash screens...if so, you'll need to make some more adjustments with this file as it was causing an issue with B&F.
Download and copy this file in the Logistics folder of the Jacksons 1862 Valley Campaign. Rename it to: gscreens (if necessary), followed by it's .csv file type indicator. Overwrite previous gscreens.csv file.
Thanks again Zeke for this wonderful contribution!

BloodBath. HehHehHeh

An additional note, prioritize Jacksons 1862 Valley Campaign mod below all other enabled mods for best results.