I should read the patch notes. This was fixed in the 3/27 patch. You just have to save the files in a completely different location from the regular scenario files -- "- Multiplayer: The game should now display custom MP scenarios from 'Documents/My Games/Panzer Corps 2/Multiplayer' in the list...

Just checked, and this fix works for online multiplayer as well.

I might have just answered my own question. It occurred to me that the multiplayer scenario names might be hardcoded into the user menu in the game. So I renamed the 3 Aachen files, and then took my scenario files and renamed them to Aachen. I haven't tried an online game yet, but I did try Hotseat,...

I made a multiplayer scenario in the editor and cannot get it to show up in the menu when trying to set up an online game. I modelled the scenario after NotNapoleon and was very careful to get everything right. It plays fine as a test play in the editor. Validation only shows errors in unit types --...