The first step to determine what's wrong would be to check if steam really downloaded the mods into steamapps/workshop/content/236850 . Each mod should have a subfolder there which is named after the steam id of the mod. And in each of these subfolders, there should be a file descriptor.mod, optionally a thumbnail file and then further subfolders with the contents of the mod(e.g. "events" for the events of the mod)