What do I do if I don't see any servers in maps?

I'm having this issue too. When you try to download/upload your data does it say "wrong data format provided"? So far there isn't a longterm fix, just temporary. If you have an account then you can go to your apps in settings and click wildcraft. Clear the cache and storage, it won't delete the account, you would just need to log in again using the username/password and download the the data over. I can't say how long it will last for but it's something.