Unreal Engine Issues

Crash on PIE exit after dynamically enabling and disabling tick functions through the Level Script blueprint.

User reports hitting an assertion due to invalid FTickTaskManager state when game is attempting to unregister a tick function that was previously disabled dynamically. Failed assertion is in FTickT ...

Crash when adding a spawnable volume to a Level Sequence when Draw Brush Polys is enabled in the level editor

Visualization View Mode Shader Complexity when in Mobile Preview Vulkan with MMV will crash the editor

Material Editor Crash occurs on mathematical operation node receiving invalid input from a Texture Object

Crash after setting a key on a Rotation Track, then trying to right click the key with Transform track collapsed

Error message: Access violation - code c0000005 (first/second chance not available) Source Context: 336 337 if (bHasRotationKeys) 338 { 339 TSharedRef<FStru ...

Crash on packaged game. 4.23 will not nativize a class that creates instanced properties inside itself

Description from the user: up to 4.23 properties nativize normally if they are written in C++ with the Instanced specifier. The discerning difference is that that there was no Blueprint Class itsel ...

(Regression) Risk of PostLoad() assert crash in all cooked, nativized builds with async load thread enabled.

This is a regression that was introduced by the fix for [Link Removed]. As a result, we can potentially hit an assert in a cooked, nativized build during async load of a non-nativized Blueprint CDO ...

Server using -useperfthreads command line causes crash if rendering thread is required for function execution

Launch on for Win64 produces fatal error

Creating a C++ project and then attempting launch on for Windows 64 causes a fatal error crash in 4.8 preview 2 binary from launcher. Project recovers from fatal error and can then package and run . ...

Editor crash when searching in Add Object menu after creating a Niagara System asset in the Motion Design editor mode