My brother and I bought this game to play coop online. We can both join open games, however we cannot join each other's games. We are on a PS4 and PS5. We have tried everything below:

Change host
Find game in lobby
Send invites
Re-install game
Port forward
Some crazy 8 step process we found online.

We get the same results every time. One of us can host, but the person joining gets a screen stuck on "connecting."

Any ideas?