Unreal Engine Issues

Adding pin to CR node causes crash if input variable is assigned to one of the array element

When a node has a variable assigned to one of its pins. You will get a crash every time you add a pin. I am sure this goes for all nodes with with the "add pin" functionality [Link Removed] ...

FPackedRGBA16N is divide by 32768 twice in NEON/FPU

Android app will get crashed if it disable HDR and run with Vulkan API

The backtrace is： F/DEBUG   : backtrace: F/DEBUG   :     #00 pc 00070e22  /vendor/lib/hw/vulkan.msm8994.so (A4xCommandBuffer::HwProcessWorkload(QglWorkload*)+585) F/DEBUG   :     #01 pc 0004758d  / ...

[CrashReport] Assertion on in UMaterialInterface::InitDefaultMaterials()

This is a common Mac crash occurring in the 4.16.1 release. I have not found any evidence of it occurring on Windows. The callstack closely matches [Link Removed], which was briefly experienced by ...

Editor Crashes When Attempting to Create/Open a Blueprint While 'Show Friendly Variable Names' is False

When the 'Show Friendly Variable Names' option is set to false in Editor preferences, attempting to create (once you press 'Enter' to accept the new Blueprint name) or open a Blueprint causes the ed ...

Editor crashes when a hot reload is performed on a project that contains a custom User Defined Struct code class

Adding a custom User Defined Struct code class to a project causes the Editor to crash whenever a hot reload is performed on that project. Removing the custom User Defined Struct class allows hot re ...

EQS Generators named "NewBlueprint" cause errors and crash

Naming an EnvQueryGenerator_BlueprintBase derived BP "NewBlueprint" and deleting it causes new custom generators to not appear in the EQS. This can also lead to a crash when searching for the new ge ...

Editor crashed on opening level blueprint

I've been unable to reproduce this issue. Once only occurrence so far. I did some other things inside the level in between these steps like pressing play and copying, rotating, deleting objects in ...

Animation System relies on FindFunctionByName which is not thread safe.

Currently, there are several places in FAnimInstanceProxy and FAnimNode_Base (and derived classes) that rely on FindFunctionByName in order to resolve transitions, evaluate pins, etc. This can happ ...

Crash upon using marquee selection in Anim Graph while debugging

A user reported a crash that occurs only in Debug Editor, related to the Anim Graph of an Animation Blueprint. The issue involves marquee selecting multiple nodes inside of a State Machine transitio ...