The one thing i didn't try fixed it. Thanks for reminding me about trying that.

I have my own dedicated bobs mods server and me and my friend didn't want any cliffs anymore so we used a command to get rid of them.

/c for key, entity in pairs(game.player.surface.find_entities_filtered({force="neutral", name="cliff"})) do entity.destroy() end

script.on_event(defines.events.on ...