Hi @Wertandrew !
Epic dev here. Not sure what could be the issue here. We ran once into a shader compilation issue that caused a regression like this, but since then I haven’t had report of widespread increase in build time. Can you share more details regarding your map setup ? Maybe share a log file too ?
There are specific logs created for the HLOD build, you can usually find them under
C:\Users<user>\AppData\Local\UnrealEditorFortnite\Saved\Logs\WorldPartition\WorldPartitionHLODsBuilder-XXXXXXXXXXXX.log
This will be very valuable in order to understand what’s going on.
Thanks!