World Partition doesn't work on the existing level (UE 5.4)

When I open a new level with only default Landscape, I can easily enable World Partition but I have issues enabling it for my current level.

The level I started to build (UE 5.4) is pretty large and the more Im building it, my performances are getting worse.
For that reason, I wanted to turn on World Partition so I could continue building level “peacefully”.
My current level consists of a large Landscape, Ocean Water, all necessary things for lighting (Lumen), many SM/Foliage, and some BPs.

Have tried all settings within the World Partition menu but they all result in the same errors.

Settings

Anyone encountered something similar before?

This is pretty important to me and I can’t work with my normal tempo without World Partition so I would be very grateful if someone could help me out fixing these errors or find some other way to enable World Partition. Thanks!

Hey there @Condara! It looks like it may be tripping up on finalizing the data layers. Could you enable the Verbose command and send over the full log?

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Hii @SupportiveEntity ! Thanks for helping out :white_heart:
Here is a screenshot of the settings I used and the Full Log. Hope this will give you more information about this issue.

Settings


Full Log Output.txt (941.5 KB)