Achievements lost after update

Not quite sure if just upgrading trigger the bug, but going back from a current snapshot to an earlier one might trigger a reset on stats/achivements.

I have also noticed this bug every time I get the newest snapshot. Perhaps the achievement data is in minecraft.jar and updating resets it?

From the wiki:
Statistics are stored in .minecraft/stats/stats_username_unsent.dat. They keep track of these stats, as well as achievements

I was also able to reproduce this bug after forcing upgrade to 1.4.2. The .minecraft/stats/stats_username_unsent.old was also wiped.

Indeed, a possible solution, is to have a separate folder/file for the achievements, instead of being inside the minecraft.jar file, or the files can be server sided, like skins. But, the server sided solution has a problem; The server might not work all the time, like how the skin server doesn't work all the time.

Same here, I have a backup of my Stats folder and MC 1.4.2 simply resets it, so I had to downgrade to 1.3.2 again until fixed. Maybe someone could help me to at least create a new stats file with the same values of the previous one?

That's what I was trying to do, but I don't know how Minecraft calculates the checksum when there are statistics without an associated MD5 in map.txt (the details of this generation are explained in my comment above). If I knew how Minecraft did it, I could simply port the old one over to the new one and keep all of my statistics. Or, in my case, just add the values from my pre-1.4 backup to the values in the new post-1.4 file to get a full, up-to-date statistics file.

I understand, I hope someone will find a solution soon because I can't wait to play in 1.4.2 🙂

The achievements/tracking are just numbers. You can totally play without them. No gameplay elements depend on them.

Its true that it isn't needed but considering they are there and they reset often it can be quite annoying for some people.

I know but they track everything I do since beta 1.7, I don't want to miss all of it. I like stats, and they're a game feature so why should I play without them?

> The achievements/tracking are just numbers. You can totally play without them. No gameplay elements depend on them.

The Achievements/Tracking IS a gameplay element. If this is not going to be fixed, Mojang might as well remove/disable the Achievements rather than people getting their work (trying to get all achievements) ruined after every update.

Yeah, stats and achievements are pointless if they regularly reset...

Personally I think achievements and statistics should be per world and saved with the world files.

Echoing Tyron and Riccardo: many of us would rather lose a stack of diamonds in the upgrade than lose credit for our precious achievements!

The best thing would be statistics per world and global stats for all worlds you played. 🙂

^this

I can attach my stat file if needed anyway.

The achievements getting wiped also happen seemingly random when installing mods, the idea of making a separate achievement folder for achievements and stats seems like a good idea.

I agree with Rodney. I think there should be another dat file or something per world that stores achievements. At least until they implement online achievements. It's a tad bit annoying to get an achievement for pressing the 'E' button each update.

Tried the new snapshot, the bug is still present

This can be fixed by saving achievements per world, so they won't be lost on every minecraft.jar change. Also, if achivements were saved per world, it would be possible to give them a utility, such a experience reward!

I don't care really much for an XP reward for getting achievements, I'd rather prefer a ton of new achievements to unlock (just about an achievement for every thing you can do in Minecraft).
Anyway, first things first, they sould fix this bug.

More achievements would be great once this is fixed.

Achievements was reset on me so many times since early beta that I do not even try to complete them. Not for long time now.

Too bad since I made hard ones such as 1 KM cart ride in survival too.

I agree with Michele. If they were saved per world then you could also allow creation of custom achievements for adventure/survival worlds.

Per world makes more sense anyway. Some challenges is harder in some worlds than others. For example 1 km rails is very easy with flat worlds.

I think I'm going to work on a mod, that saves the achievements in a different folder outside of minecraft.jar, so when updated, it will still keep the achievements. The only concern is that you will need to download the mod every time you update. I infer that this will be finished by the end of this month, or December, depending on the school work I have to do.

Also, it would be easier for the Mojang team to do this, rather than a modder like me, because I would have to read all the coding in the minecraft.jar, while the mojang team knows what is what. Also, if the mojang team does this, the achievements can be saved server sided, like skins.

^ that would be awesome, it would be the first mod I try.
And yeah, Mojang should do this instead.

I have to say that I'm surprised at Grum's comment. From a marketing standpoint achievements are a big seller. It brings players back to the game to try to get that next achievement, or reset/prestige (by choice) and do it again. Microsoft and the xbox/PC, Sony and the PlayStation, Steam, and more have all learned this. To say a feature included in the game on purpose, isn't that important and you can play without it... is very true, however your customers enjoy seeing "I did something!". When an feature is included in the game, however minuscule, is expected to work properly. People have even been requesting an expansion of the achievement sets.

So I have to agree, fix it or remove it. Otherwise it will continue to reflect badly upon Mojang and their developers as it's highly visible to all who play. I really hope Grum was having a bad day, because I really don't want to see MC go down a path where the majority of players say, "MineCraft is OK, but there's all these bugs they don't care about," instead of "MineCraft is great!"

This happened after and during October 31, because Minecraft.jar was changed to make the easter egg work.

Xavier: No, I lost my achievements when I went to 1.4, before Halloween. I'm not actually annoyed by this, because I'd gotten "Sniper Duel" offline (so online would never recognize it, nor let me re-earn it). I've got most of mine back, plus one I hadn't had and the rest will come in time.

I think I will have to repeat myself.
"Statistics are stored in .minecraft/stats/stats_username_unsent.dat. They keep track of these stats, as well as achievements"

It's NOT stored in minecraft.jar! Something in the code resets the stats and achivements sometimes for some reason tho'.
Perhaps its better to have the achivements serverside instead.

(you can backup the stats dir, I've done that, that way I can always put the stats/achivements back in case of a reset)

I play since beta 1.7 and never lost stats until now, anyways, I HAVE backups of the stats dir, but everytime I put it in 1.4.2 they resets.

Riccardo, attach the stats file. Maybe it will help the Mojangsters to find what's causing it to reset.

We understand this is a problem. If you can confirm this, vote for it. Don't keep repeating what others are saying.

Here they are, they still work in 1.3.2, but reset if I launch 1.4.2 or 1.4.3 pre-release.

They reset along with the minecraft.jar, it's not really a bug.

But I do believe that this should be fixed, though.

Someone informed me that he thinks this one stat is causing the whole problem:
{"16843110"} -> "Map (Times Crafted)".

I don't have the time to test it myself tonight, but I'll try removing it from my stats tomorrow to see if it fixes it.

I'm not that good at these things, but I tried opening "stats_dunther_unsent.old" and "stats_dunther_unsent.dat" using the notepad, and either removing or setting that stat to 0 resets everything even in 1.3.2.
Probabibly I'm doing something wrong.

You'd also need to properly calculate the checksum, otherwise the file will reset no matter what. I explain how to do this in one of the first comments on this issue (I figured out that you use null in place of missing map.txt hashes).

I just tested it for myself and it's definitely that one single stat that broke the whole file. It must be because 1.4 made crafting maps themselves impossible, and you now create empty maps instead. The new maps-crafted stat has moved to ID 16843147 (for item ID 395, Empty Map). So an easy fix would be to scan for 16843110 on game load, and if it's found, replace it with 16843147. Credit for the find goes to Valares on the Minecraft Forum: http://www.minecraftforum.net/topic/1536225-stats-reset-with-14/

Tried it and it WORKS! Thanks a lot!
I think I lost something in the process, but maybe not (not sure about it since are all block/item stats).

I did not lost my achievements when updating 1.4.2 to 1.4.4.

Same here, good thing

Minecraft in-game I lost stats I've collected for a long time, maybe since 1.0. For me, collecting stats is about 40% of the fun in Minecraft.
Having stats on a online database would be better?

Indeed it would

I have also been waiting for an online stats solutions, as such a thing was in the past mentioned to be planned sometime.
Also, as has been stated many times in the comments here, I believe that the best solution would be to have per-world (and maybe even per-gamemode?) stats. I know I don't want to get my creative mode stuff mixed with my main survival mode world stats. Probably the creative mode usually goes with the world, meaning that survival worlds usually should not experience much if any changes made in creative mode, so saving the stats and achievements per world would probably be the best and a sufficient solution.

It would probably be best if they were saved in the server side and then synced to the client when the player is viewing them. That would also allow nice server side web-based stats to be displayed for every player (with external tools, even in case of a vanilla server). Also, if the stats would be per-world, it would prevent them from being messed up while trying out snapshots, since it is usually not a good idea to load any world with an older version anyway. And maybe the stats tracking could be modified in such a way that if there are unrecognized entries, they are just ignored and not updated or reset. That would probably even allow the stats to persist across downgrades (upward from the point that feature was introduced in).

In addition to the per-world server-side stats, global per-account stats on Mojang servers would be a nice addition.

Just a quick addition: I really love keeping statistics and logs in general. In case of Minecraft, I am more concerned about the stats than the achievements. It is just really nice to know how many blocks of stone you have mined during the years, how long you have walked or how much damage you have taken.

So, if the stats would in some point be improved and moved to the server, it would be nice if the newer gameplay elements are considered to be added as well, such as repairing items in the crafting slots or with an anvil, how many levels have been spent enchanting/repairing with an anvil, how many animals have been bred, how many "extra" items have been gotten with Fortune tools and so on. And maybe categorize for example the damage taken by different damage sources as well, such as mobs, falling, drowning, fire etc. I realize that is a bunch of work, but when Mojang runs out of useful things to add to the game and considers it more or less a finished product, maybe then these kind of additional nice features could be added. Of course by then, loads of interesting statistics will have been missed already :S 😉

Anyway, just my two or maybe three cents. -masa

This may not actually affect gameplay, but this is still really annoying. I get tired of seeing the inventory popup every time I update or try a snapshot.

This didn't happened to me when updating 1.4.5 for 1.4.6.

This happens while downgrading and if you install/deinstall mods with custom achievements.

I lost them again yesterday on 1.4.6, when Windows restarted after flashing a blue screen.

You lost them because of a system crash, happened to me too, you can easily restore a backup if you have one.

I have a backup, but this will make me loss hours of game that weren't bakuped yet.

Same happened to me, I think you can't do much about it, just backup more frequently...

when it happens to me, i just redo the ones i had done before in creative. it'll put them in your survival worlds too.

Added better error handling when encountering unknown statistics. Should help most problem cases.

Unresolved. Happened to me when updating from 1.6.2 to 1.6.4.

Achievements and Statistics are stored per world in the 1.7 snapshots.

Which file I can edit using wordpad to compensate this?

[minecraft|http://hopper.minecraft.net/help/finding-minecraft-data-folder]/saves/worldname/stats/playername.json

There is no "stats" folder inside the folder of worldname.

Well have you launched your world with a snapshot?

In the past, yes. But now it's 1.6.4.

What I meant is: with the 1.7 release achievements and statistics are stored per world, meaning this bug is already fixed in the 1.7 snapshots.

I didn't used any 1.7 snapshots. I don't use snapshots because they're much more bugged.
But, how having the achievements per world solves the problem? This don't blocks the program from reseting them, don't?

Well help Mojang finding out how stable the new per world system works by testing out the snapshots 🙂.