Preparing spawn area spams 0%

The issue is that the count is only incremented for newly generated chunks, rather than loaded chunks.

The reasons for this is quite a long chain of dependencies though, so probably the counter needs to be rearchitected a little bit to avoid reliance on that behaviour.

Seeing something like this in the debug console.

Nope, back in 1.13-pre1.
Also freezed and now i have an annoying MineWindow.

This is the only message I get and it only says "loading world" but never joins the world.

Proably MC-129628. It stops me from opening any 1.12.2 world

Affects 1.13-pre4, I get this error when tryed to create a new world in 1.13-pre4:

https://hastebin.com/qexohexuke.md

I now have this bug in 1.13-pre4.

Same here with 1.13-pre4. Tested on three different Win10 machines:
Error Description: "Writing into PalettedContainer from multiple threads".
Crashes on first creation of a world. On later loading of the same world it never passes 4% of preparing the spawn area, but without crashing.

Likewise. Same error.

However, the world always crashes. Though the Launcher does not show an alert like it usually does, unless the game's process is ended from Task Manager.

Intriguing that some of us didn't have this error with the previous snapshots like others did.

Can't load into any world. Loading always stops at 'Preparing spawn area'.

edit 1.13 pre4

@unknown, your's is a different issue: MC-132073

No longer Happens in 1.13.1-pre1.

@unknown, but still happens in 1.13 ?

Doesn't happen for me in Release 1.13 either.

This is happening for me in 1.14.2.

And me in 1.14.3. It's definitely not due to a lack of ram, as I've seen in every forum post on this subject

Which java version are you using. Try updating your java version.