Modiki doesn't seem to have a Civ 6 component yet(?).
I'm having an issue similar to the one mentioned above. Mods I've activated in "additional content" are not actually being activated. For instance, the "Larger Worlds" mod, once activated, doesn't show the "Enormous" and "Massive" options in "Advanced Setup" in the "map size" menu.
Same goes for "Advanced Setup Lite" mod. If I activate it then go to advanced setup, none of the new options will show up. This occurs even when I activate a mod, close the game, reopen the game, confirm that the mod is activated, and then check to see if it indeed is showing the new features.
This happens in reverse as well. Mods that I have deactivated are still applying their changes to the game even after a restart of the game. This makes it really hard, if not impossible to try to determine mod conflicts by deactivating mods to determine if they are conflicting because deactivating does not consistently apply the desired change.
Most bizarre of all, I can close the game completely, go to the mods folder under users where non-steam mods are to be placed, delete mods (or even delete the entire folder) and still have the mods showing under the additional content directory. The only effective way I've found to ensure mods are deactivated is to delete the entire user directory under Civilization 6 in the My Games folder.
I have reinstalled the game three times, ensured that all of the patches have been applied and that all the DLC is correctly installed. I have tried deleting just the Mods.sqlite file and I've spent excessive amounts of time going through the modding log which shows no errors. I've tried applying community fixes for the "return to the main menu" bug as well as checking to see that the update that was supposed to fix the bug was applied. I'm running version 1.0.0.229 (339082).
This has completely stumped me as none of this makes any sense. All of my mods come from this site and have been carefully installed using instructions posted in the mod description when there are any.