Disconnect and set back 30 minutes
It's actually from 1.21.3, but that doesn't appear as an option for me. Essentially what's been happening is that while me and a couple of friends, never more than 5 at a time, and sometimes when there are only 2, are on the realm we will suddenly have intense rubber banding. The realm then crashes and stays down for about 2 minutes. Upon reentering the world we are then sent back 30 minutes. This is not an exaggeration, it's always about 30 minutes of time that is lost from this bug. It seems to be unrelated to whatever the players are doing and more like the game just decides to quit on us, as it happens when people are doing more intense things like ancient debris mining, but also while people are just chilling in their own bases. It has happend 4 times in the last 3 weeks, but I'm sure if we'd been playing a lot it would have been more.
Created Issue:
Disconnect and set back 30 minutes
It's actually from 1.21.3, but that doesn't appear as an option for me. Essentially what's been happening is that while me and a couple of friends, never more than 5 at a time, and sometimes when there are only 2, are on the realm we will suddenly have intense rubber banding. The realm then crashes and stays down for about 2 minutes. Upon reentering the world we are then sent back 30 minutes. This is not an exaggeration, it's always about 30 minutes of time that is lost from this bug. It seems to be unrelated to whatever the players are doing and more like the game just decides to quit on us, as it happens when people are doing more intense things like ancient debris mining, but also while people are just chilling in their own bases. It has happend 4 times in the last 3 weeks, but I'm sure if we'd been playing a lot it would have been more.
This has happened to me too multiple times on a friend's realm I play on, in Version 1.21.4. It happened exactly as described here. There is no set time or activity that it happens during, just seemingly at random times.
It's very annoying when you log back in after the crash, and you've lost all progress gained in the last half hour.
It also seems to maybe be an unintentional dupe glitch, with mixed results. It happened tonight to myself and a friend, and when we logged back in I was missing an entire shulker box, gone completely from the world. My friend, however, ended up with 3 shulker boxes in his base, and those same 3 shulker boxes (uniquely named with unique items) in his ender chest.
I'm a little confused/disappointed on why there are so few upvotes on this issue.
This is a Mojang server issue, and can confirmed on the latest snapshot.