I've actually done than a couple of times but was going to do it again. Missing store content seems to be a common problem. I read something yesterday in a post from 2017 which is slightly more current, about a content patch for 1.67 that was no longer available. I can't remember what it was actually for but someone was able to find it and posted the link. I tried that and nothing happened and the folder is empty. It was suggested that anti-virus software might be having an impact but I'm using the same anti-virus that I have on my other computer.
At one point yesterday (I think I might have mentioned it) I actually got Riverview to show up in my New Game drop-down but then Union Cove had disappeared.
I'm not exactly a computer whiz, but I'm no dummy either. I've been using computers since the first home system came out and I don't usually have a problem figuring things out (my husband was a career computer jockey so I learned by osmosis

), but this is defeating me. Since I don't have a lot on this computer, I might just do a full factory reset and start over.