With Bobs Ore enabled I am getting the following error
Failed to load mods: Error while running setup for map gen preset "project-corona": "cobalt-ore" is not a valid autoplace control name.

Game version is 18.35 also same issue in 18.34
Mod version 18.10 but does work with mod version 18.9

I really don't know why that is happening. Are all your startup setting default? What other mods are you using?

In testing I have tried just the optional mods under the Project C mods. No configuration changes on the mods. Default values on all of the mods. I am not sure what changed from .09 to .10.
I compared the .09 to the .10 setting file and they are the same.

Please post your mod-list.json file to a new issue thread here: https://github.com/Project-Corona/Project-Corona/issues

Also screen shots of your startup settings may help.

I can't seem to reproduce this and it makes no sense because the code runs a check to see if the resource even exists in the game.