Moderator Note
Downgrading from newer versions to older versions may have undesired behavior, please back up your worlds before testing snapshots.
Upgrading to a snapshot may also corrupt worlds, please back up your world before testing.
Enabling Development Builds Warning in the Launcher:
Are you sure you want to enable development builds?
They are not guaranteed to be stable and may corrupt your world.
You are advised to run this in a seperate directory or run regular backups.
Downgrading is not, was never and will never be officially supported!
Definition of downgrading: Going from a version with a higher number (example: 1.12.2) to a version with a lower number (example: 1.11)
@unknown in https://twitter.com/jeb_/status/507193706781614080
... Don't open a 1.8 world in 1.7 unless you have a backup ...
https://twitter.com/jeb_/status/507198150474727424
Since you ask: 1.7 doesn't know how to handle 1.8 saves, but tries its best not to crash. This means it ignores data, which is lost forever.
14w03a came up today and I noticed the transparancy bug with glass panes, so I switched back to 14w02c to verify that was working correctly there. All items everywhere vanished. Everything in my inventory, equipped gear, even everything in chests and furnaces are gone. Switching back to 14w03a did not bring it back.
Linked issues
is duplicated by 204
MC-3081
Nether Bedrock Glitch
Resolved
MC-45095
Lost All items
Resolved
MC-45157
Whenever I opened the new snapshot all of the items in my chests and item frames disappeared
Resolved
MC-45181
Inventory Wipe Bugs With 1.8 Snapshot 14w03b and Version 1.7.2
Resolved
MC-45182
Inventory and Chest Wipes in 14w03b
Resolved
relates to 2
Attachments
Comments 37
You have got to be kidding me. Where does it say this? If this is so, then the game shouldn't let you open it in an older version, or should warn you and make a backup copy.
You were warned...
Enabling Development Builds in the Launcher:
Are you sure you want to enable development builds?
They are not guaranteed to be stable and may corrupt your world.
You are advised to run this in a seperate directory or run regular backups.
That says that the snapshot may corrupt your world, not that you should never switch to an older version.
so does this mean I have to start from punching wood again? and all things are gone permanently? I picked a bad day to start using snapshots.
I have had this happen to me once. I played a creation map on 1.7.2 (because of a computer incompatibility) when the map was 1.8 snapshot (I didn't notice that little piece of info on the map download). Everything worked just fine for about a month. I logged in one day in Fullscreen mode (I usually play it at the little tiny default window size). All the signs said "null '(Text)' null null". I thought that was just a temporary glitch and relogged. The signs were still messed up. I was in the process of trying to fix them when I noticed my inventory was empty. I figured "Oh well, maybe I was a scatterbrain and put my stuff in a chest." I go to a chest and open it. A chest that I KNOW I had stuff in was completely empty. All jukeboxes were empty, too. (I like to listen to Cat a lot, so I usually keep one near me.) I also noticed all the paintings had fallen off the walls. I picked them up and realized either:
a) Someone hacked me (has happened before), or
b) Something went wrong.
There was nothing in the launcher indicating something went wrong. Also, I had this weird thing where I could craft slime blocks in 1.7.2 in that world. I thought they had already existed until I saw the 1.8 release log. Could that have corrupted a world? I reset the map just fine (I usually store all my maps in a folder) to see if it was my computer (my computer's very old). It wasn't. The game worked just fine. It was very annoying having to make full diamond armor again. However, it hasn't happened to me after that and I haven't been able to replicate the error.
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