Game mode: Online private
Type of issue: Crash
Server type: PvE
There seems to be a critical failure related to the underwater plant life. This issue seems to only affect the Windows server, the bug can not be replicated on a single player world. Any attempts to harvest underwater plants will cause the windows server to crash and rollback. Attempting to build foundations on top of the underwater plants will cause the server to crash on every single startup.
=== Critical error: === Fatal error: [File:c:\REPO\Engine\Source\Runtime\Engine\Private\HierarchicalInstancedStaticMesh.cpp] [Line: 2295] Invalid InstanceReoderTable Index 1518 of 0 elements in UHierarchicalInstancedStaticMeshComponent component 'PickupFoliageComponent_C_3' of actor '/Game/DLC_EXT/DLC_Siptah/Maps/Heightmap/heightmap_x6_y5.heightmap_x6_y5:PersistentLevel.InstancedFoliageActor_1' !0x0000000000000000
Harvesting or Building on underwater plants should not crash the server.
On the Isle of Siptah map on the island in the top right corner is where I have been testing this crash, I have tried multiple different lakes and rivers on this island with the same result.