Someone please help me I'm just trying to host a Western European Diplo game on AOE2HD via Steam.

I have successfully loaded many other maps and scenarios by simply hitting the Subscribe button and relaunching the game. But I cannot seem to be able to add any more. I've deleted all my mods and tried adding any maps once more to no avail. It says "subscribed" but when I relaunch the game.... there is no slot for that map under the "Custom" tab. I'm losing my mind waiting in the lobby for someone else to host the same type of game. Big mahalos to any help. Yes I've googled.