CO-OP Play Question

My wife and I play together, but I am not real sure if we are on a server or not. I started a Seed, gave it a name, clicked start server, and then entered the seed. My wife joins by clicking join friend, but can not enter the seed/server with our updated progress.
We would like to work/play on the same seed and BOTH retain/get the up dated progress. Any info would be appreciated.
2:13 pm, October 21, 2021
rapier1955 0 comments 0 likes