Slypenslyde

How do you redownload/reinstall the game without losing your worlds? 

Same here. Since 1.18.30 it seems like every 10 minutes or so the game just freezes for 30-45 seconds. I'd say it seems related to Autosave but MCPE-43871 lol "resolved". I think my game spends less time NOT auto-saving than saving!

I spent all morning capturing 2 zombie villagers, curing them, and moving them up to a holding cell at y=210 so I could build a villager breeder.

This is all about 50 blocks X, 20 blocks Z, and obviously about 150 blocks Y away from my spawn.

As I was building, a skeleton knocked me off my platform and it took me a few tries to get back up without being knocked off again. Somehow in that process, the 2 villagers despawned along with the 3 minecarts, cat, 2 chickens, and 8 sheep that have despawned every other godforsaken time this happens.

It's getting hard to think about bothering with the game. I have to constantly make copies of the world and for every 2-3 hours I play I lose an hour of progress. Why on Earth would I pay for a Realm subscription while this is going on? 

The bug definitely happens on save or load. This afternoon I played for about 2 hours then, as is my protocol because of this bug, I went back to my base and verified my cat, chickens, etc. were there before saving and quitting. The screenshot of the save file has my cat in it. I load the file and it's gone. That's stupid. 

When I loaded the save tonight, all of the entities are gone. A cat, 3 minecarts, 2 chickens, 8 sheep, I don't know how many cows, and my patience. I'm getting tired of losing entire afternoons of progress. I'm getting tired of having to make 2 copies of the world before any session. This bug was created 5 years ago, it seems like it should've been fixed!

How am I supposed to get excited about the new mobs? I can't trust them not to be eaten by this bug.

I had this happen a couple of weeks ago when I went to fight The Wither in The End. I thought it had something to do with all the portals. But it happened again today and I think it might be related to something else.

What you were doing leading up to the mobs disappearing?

Today I was within 2 chunks of a cat, 2 chickens, 3 minecarts, and about a dozen sheep that disappeared, building the start of a wool farm inside my base. I don't know precisely when they disappeared because of how the day went. 

The minecarts confuse me the most. I specifically built the farms they're related to inside one chunk so this wouldn't happen. They disappeared anyway. 

After the first disaster, I've been making copies of my world every morning. But that's the interesting part. At lunch, I made a copy of the world and made that copy Creative so I could try out a few different placements of wool farm modules. This evening I worked in that copy for about an hour. I never really left the same 4 or 5 chunks, it's all inside my base so all my stuff was there. After I'd figured out how I wanted to start my farm, I quit and loaded the Survival world. That's when I noticed everything was gone.

I think this has something to do with copying files. I hadn't played the specific file where everything disappeared yet at all today, I only made a copy of it at lunch. The last time I had things disappear, it was immediately after I made a copy of the world, then loaded. In that case I did some Nether travel to about 1,800 blocks away, saved, made a copy, then went into The End, fought The Wither, and warped back. Neither the original file nor the copy had my pets.

single vs. multiplayer, local vs server/realm

Single player, Switch version

how far you traveled

The first time, about 1,800 blocks. This time, fewer than 40 blocks.

how long the current or previous play session lasted

About an hour.

whether the despawns were near a player spawn point or if you had changed your player spawn point during the session,

Yes, everything that has disappeared was within 50 blocks of my spawn point both times. 

if you experienced lag or anything else abnormal.

Nope, the only abnormal thing is having pretty much every entity within 3-4 chunks of my spawn point despawn, even named and tamed creatures and minecarts with hoppers.

20 minutes after I made this issue, a song started playing. Maybe it was a false alarm but dang I'd like to hear music more often. 

Can confirm this is happening to me on latest released Switch version. I've generated 3 hives so far and each has had the entrance facing the dang tree.

It turns out you can do this, but it's very difficult to pull off.

First, you have to scroll to exactly the trade you want. This puts the cursor over the arrow between what you're "paying" and what you get. Then, you have to *carefully* use the right stick to slide the cursor over to the result. There is a very, very narrow hitbox and if you go 1 pixel too far you skip straight to your inventory.

This should really use the d-pad or not be so fidgety.

Yep, I'm having this too as reported in https://bugs.mojang.com/projects/MCPE/issues/MCPE-45163.

Those aren't nitwits, they are "unemployed".

In 1.11.0, if a villager doesn't have a claimed workstation block, they don't have a profession. In theory, if you put the right workstation block in front of these villagers, they'll claim it and get their profession back.

In practice, there's not a good way to guarantee the villager you want will claim it, so you pretty much just lost our trading hall. Heck, in my village I have claimed beds and claimed workstations but every villager is unemployed. 

Yes, it's been several nights. I've been patrolling the village for about an in-game week now.

I find that workaround unacceptable, especially on the heels of the Switch version being extraordinarily prone to crashing and freezing in the last update.

I play in very long sessions, and it takes too dang long to save and reload (3 minutes!) for me to be constantly doing that. If Minecraft can't get auto-save working I can just play "any other game".

Disabling multiplayer doesn't change anything. Accessing chests or mining while autosave is happening causes exceptionally poor performance. This would be moderately acceptable except the game only spends 10-15 seconds between each autosave. 

Here's some comments after a few more days with 1.10.

1. The game auto-saves a suspicious amount. Sometimes it starts autosaving 10-15s after I loaded a game. 

2. Lag spikes seem to only happen when auto-saving. If I open a chest, sometimes it lags so long the game displays a kind of "loading..." indicator with animated bars.

3. I've had the game freeze 3 times when I try to use "Save & Exit".

I still suspect there's something really fishy around auto-save. (1) and (2) combined really exacerbate each other. I'm suspicious for (3), if I happen to try and save exit the game at one of the numerous moments where it wants to auto-save, it freezes.

I just played about an hour on 1.10 and it feels waaaaaay better. I had a lag spike here and there if mucking with chests while auto save happened, but all in all it feels like I remember from 1.8. I hope this continues!

Here's an angle to consider if you haven't:

I remember on 3DS it was really important to choose an SD card with certain speeds. Binding of Issac had a lot of freezing/crashing issues that turned out to be related to SD card speeds. It took them a long time to figure that out and fix it.

The freezes I see do seem to be related to when auto-save is happening, so I wonder if there isn't some kind of I/O contention? The SD card I bought for my Switch was cheap as hell because I needed an SD card more than I had money, so maybe it's just not fast. If you're testing with relatively good SD cards, maybe head out to Best Buy and look for a cheapo one.

Here is what I can confirm in my game:

• This started immediately after downloading 1.9.0 and I wish I could revert.

• My worlds do not have item frames.

• My worlds are very small, ~15MB, and the problem persists in new worlds.

• It has happened both near villages and far away.

Longer stuff:

The main world where this is kicking my butt I spend most of my time in a Sunflower Field biome that does happen to be near a village. If I'm in a corner or my face is pushed up against a wall it seems to get a little better. For a while I was suspicious maybe there were too many sunflowers, but as this happens far enough away those chunks are unloaded I'm not sure that's the case.

Menus also seem to be a villain: 80% of my crashes happen either when I'm opening a chest or trying to save the game. I can't confirm but I've felt like it happens most often if I start pushing buttons "too fast". As in, if I open the menu and within 800ms or so start jamming on the d-pad, that seems to freeze, whereas if I sit still and let Minecraft have 5 or 6 seconds to load things "seem" more stable. But I've been busy and haven't tested that extensively (also because I don't like when it freezes and I lose things.)

I lost my horsey 😞

I'm having similar problems. The game is performing terribly, lots of framerate loss. I can't seem to play for much more than an hour without it freezing, and I always lose something after a freeze.