Unreal Engine Issues

Niagara versioning Upgrade Notes do not stay dismissed after update from 4.26

Navigation: Exiting game while async nav building tasks are running can cause null pointer access of OctreeController.NavOctree from worker thread

Context Projects can turn on the project setting bDoFullyAsyncNavDataGathering to execute navigation mesh building tasks on worker threads. Some of these tasks will access the NavOctree, whose life ...

Navigation: Exiting game while async nav building tasks are running can cause null pointer access of OctreeController.NavOctree from worker thread

Context Projects can turn on the project setting bDoFullyAsyncNavDataGathering to execute navigation mesh building tasks on worker threads. Some of these tasks will access the NavOctree, whose life ...

DFAO has ugly result on Hair Material with Custom Tangent

[CrashReport]Assertion failed: !bInstancedStereoEnabled || (bInstancedMultiViewportEnabled || bMobileMultiViewFallback) [File:./Runtime/RenderCore/Private/StereoRenderUtils.cpp]

Generated from CrashReporter ...

Crash in UDataTable::RemoveRow(FName RowName)

This is a regression, the crash seem to have been introduced by CL 40129784 on ue5-main and persists in latest. Function UDataTable::RemoveRow(FName RowName) uses macro DATATABLE_CHANGE_SCOPE_SINGL ...

Filling Vertex Colors does not propogate down to other LODs

The original reported behavior called out that filling individual channels did not apply to LODs when LOD Model Painting = False. With changes implemented in 4627582, the initial fill will reach LOD ...

Latent Blueprint Functions has incorrect linkage when the FLatentActionInfo is the first argument

When you create a latent function in C++ with the FLatentActionInfo first it will incorrectly set up the linkage for the latent info such that it gets linked to the incoming execution pin of the fun ...

Creating a float variable named lifespan in an Actor Blueprint and setting its default value will override the life span of the parent class

Creating a float variable named lifespan in an Actor Blueprint and setting a default value for it will override the parent class' life span setting. I was unable to find any variable in the Actor cl ...

Instanced EditInlineNew Objects not correctly propagating to children and placed level instances

Instanced EditInlineNew objects are kind of broken right now and hard to make full use of. In addition to the notes above, there are some cases where you can't even assign new values into the base c ...