Unreal Engine Issues
Unreal Engine Issues
GAS: Initial OnRep_SpawnedAttributes from DefaultStartingData clears attribute values for already replicated ActiveGameplayEffects
UE - Gameplay - Gameplay Ability System - Oct 23, 2024Context The property 'DefaultStartingData' in AbilitySystemComponent can be configured from blueprint to spawn default attribute sets. This happens OnRegister. For runtime spawned actors like pawns ...
Add Submix Effect Blueprint Does Not Have Any Effect
UE - Audio - Dec 11, 2020Adding a second effect to the Submix Effect Chain on a Submix works as expected, but when trying to add a Submix Effect via Blueprint, there is no effect. This also applies to "Add Master Submix Ef ...
Ensure occurs when RBAN simulated rigid body approaches UseComplexAsSimple mesh
UE - Simulation - Physics - Character - Jun 30, 2022When a collision enabled RBAN node attempts to collect surrounding meshes, if there is a mesh with UseComplexAsSimple, it will hit the Ensure when cloning a mesh on the task graph thread. Disabling ...
Editor can crash while performing a Hot Reload after a custom UClass class is added to the project
UE - Foundation - Cpp Tools - Hot Reload - Mar 14, 2019Performing a Hot Reload after creating a custom UClass class can result in a crash. This was reported on Linux, but reproduced on Windows. Additional testing will be done on Linux to confirm the is ...
Using ConstructorHelpers::FClassFinder in a GameMode constructor may result in a default value or crash if the level is reloaded multiple times.
UE - Gameplay - Oct 27, 2015Randomly selecting a character class from the GameMode constructor using ConstructorHelpers::FClassFinder can result in default or null character being set when the level is reloaded. It appears tha ...
FStateTreeExecutionContext::GetDebugInfoString() outputs wrong info and crashes when using linked state trees
UE - AI - Debugging - Apr 17, 2025When using State Trees, the AI Debugger can be accessed during play to show information about their current execution state. If a behavior tree is currently in a state that references a linked tree, ...
Packaging failed with disabled plugin
UE - Foundation - Cpp Tools - Oct 9, 2018Disabling any plugin causes packaging failure. No repro in 4.19 Also occurring when Disabling all platforms except for windows and changing configuration from development to shipping. ...
"Active" marker on shot track scales improperly when using Time Scale
UE - Anim - Sequencer - Apr 21, 2017"Active" marker on shot track scales improperly when using Time Scale ...
Server crashes when client connects after Server has reloaded a sublevel with a deleted actor
UE - Networking - Jul 13, 2017UNetDriver::DestroyedStartupOrDormantActors maintains a list of deleted startup (and dormant) actors. This is used to notify clients that have joined the server of Actors that need to be destroyed ...
Client crash on seamless travel in DataReplication with lag
UE - Networking - Jan 11, 2016When server traveling, client may crash due to lag while attempting to replicate object/property. ...