As shown above, this just started. I was running games on this server for a while, just switched maps, and now this starts with any map I try. The server factorio version is updated to the most recent. I even save the game on the server computer then try to launch, same thing. Any suggestions on why it thinks the maps are from a future version of the game?
EDIT: The server computer, when I run factorio normally (not headless) is build 0.18.21 (Build 51104, win64, steam)
EDIT 2: Other things I have tried, verifying game files, full uninstall / reinstall, trying versions 18.20, 18.19. Still shows the game loading as version 18.18, and the wrong build, but if I play factorio it shows the correct build.
The log says its loading 0.18.18, not 0.18.21