Failed to load achievements The requested operation could not be completed due to an error communicating with the server. No achievements returned

I see this error in XCode, after initializing Game Center. It says that the communication with the server is a problem, but leaderboards are working fine. I am using the Social functions, Game Center is initialized correctly, and leaderboards are working fine. However, after initialization, I get this error when Social.LoadAchievements function is called, accompanied by

“Error: no achievements found”

When I try to submit an achievement, I get the

“Failed to report achievement”

response. Achievement is registered on iTunesConnect, and so is a leaderboard, but this is happening.

Anyone with the same problem?

I ran into this same problem this morning. Following this post.

Same issue, Did you found a solution?