I’m unable to issue an update on my game. I even tried a blank template and it still won’t retrieve anything. I am able to access and configure my place on the Roblox website, so I don’t think it has anything to do with my account.
I’ve been trying to publish for the entire day, to some avail, it worked after waiting about 45 minutes to an hour. [6-hour gap] At the time I’m writing this, there are still issues that give me the same errors as you are experiencing. My friend says he cannot join games that may or may not be linked up to the problem with Roblox studio or Roblox Client itself.
As of 6/16/2021 - This bug/error (could be from my end but quite a few people are posting about this so I thought I might as well give it a shot) has made it so I cannot publish nor save to roblox.
As of 6/17/2021 | 8:32 AM PST - I’ve been able to publish but I do expect this issue to occur again and again.