16k tiled map + World Partition crashing

Echu · October 11, 2024, 7:58pm

Hi all! So I have been working on a landscape in World Creator. We’re building an open world map in UE5, 16384x16384 pixels heightmap (so 16386m2 is our goal)

I have exported it in 1024 tiles of 2048 res heightmaps, in the right naming system for UE5 to read it.

I have set the new level as an open world with world partition, and then when creating the landscape I set it as I was told to do:

World Partition Grid Size : 1
World Partition Region Size : 16 (default)
Section Size : 127x127
Sections per Component : 2x2
Component Size : 254x254 quads

So far, it crashes after thinking for 5 minutes when I select the first tile. Not even able to click on Import button, just select the file.

Anyone has a hint? Pretty new to this. The World Creator Bridge isn’t working either.

Thanks!

Crash LOG:

Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\build\++UE5\Sync\Engine\Source\Runtime\Core\Public\Containers\Array.h] [Line: 758] Array index out of bounds: 0 into an array of size 0

UnrealEditor_LandscapeEditor

UnrealEditor_PropertyEditor

UnrealEditor_LandscapeEditor

UnrealEditor_Slate

UnrealEditor_ApplicationCore

user32

UnrealEditor_ApplicationCore

UnrealEditor

kernel32

ntdll