bartdanr
Chieftain
That usually means there's something in the scenario file that doesn't match with the relevant XML file, so there's likely some sort of typo relating to leaders
Edit: I'd recommend turning on Python exceptions in the configuration text file, it should point you to exactly what's wrong if it's a typo
Thanks, I got it working!
It appeared as though I had Canada's leader as "Bordon" in some files and "Borden" in others. I corrected the spellingThat fixed it!

Still haven't loaded in all the civopedia entries, but it's playable. I've got portraits for all the relevant leaders now, so Wilhelm
Next project: adding religion back into the game. I may want to first change "Restorationism" to something a little more in line with religions common in the WW I era. Suggestions? Maybe Evangelicalism (separate from Mainline Protestantism). Anglicanism? Something else?