Unreal Engine Issues
Unreal Engine Issues
Engine Crashes On Scene Close When An Actor Is Spawned With Templated FActorSpawnParameters
UE - Simulation - Physics - Mar 5, 2020When an actor is spawned with Spawn Parameters that are templated the engine crashes when closing a scene. This wasn't happening when there wasn't a physics constraint on the spawned blueprint. Thi ...
Crash occurs in Hierarchical Instanced Static Mesh of Mesh with MinLOD set to 1 or higher
UE - Graphics Features - Oct 22, 2020I have attached a reproduction project with the above settings.[Link Removed] It crashes when packaged, launched and moved in-game. This issue seems to occur when there is an object in the Unbuilt ...
Scaled Geometry Collection made from non-basic Static Mesh Crashes Editor
UE - Simulation - Physics - Destruction - Nov 14, 2022Reproduced 3/3 times. So far tested with the Chair and Statue from the Blank Template Editor Default level. Error Reads as follows:Assertion failed: IsValid() [File:D:\build\++UE5\Sync\Engine\Source ...
Deleting a Virtual Camera Actor disables Gamepad Input across Editor
UE - Virtual Production - Tools - Virtual Camera - Jan 6, 2023Reproduced 3/3 times, issue does not occur in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. Issue seems to occur when the Virtual Camera actor is fully initialized? If Editor is res ...
Blueprint debugger: variable getter node displays wrong object's value
UE - Framework - Blueprint Runtime - Jul 28, 2023After triggering a breakpoint in blueprint, variable getter nodes can display the value of a different object than the node's target. For example: if an actor class has a value MyBool and the bluepr ...
Jitter playing animation on actor located far from origin
UE - Anim - Runtime - Mar 12, 2024A licensee has reported an issue with jitter when playing animations on an actor translated far from the origin (300000.0 units). This repros on the First Person Template. The issue is more obviou ...
Component Reference of Placed Instance does not Update after Removing the Component in Code.
UE - Gameplay - Mar 14, 2016After creating a component in code and placing an instance of the code class/blueprint into the level, the component will still show as inherited if the component is removed from code. EDIT: Includ ...
OnRep_ReplicatedAnimMontage causes popping when montage ends
OLD - Anim - Oct 8, 2016UAbilitySystemComponent::OnRep_ReplicatedAnimMontage doesn't handle some edge cases when stopping the montage when blending is involved. Namely, it's possible on a client (due to latency, etc.) that ...
FArchive broke operator<< for bool in Editor builds
UE - Foundation - Core - Feb 16, 2017Looks like CL-3215392 added changes in FArchive where the operator<< method for bool is a member operator in Editor (as opposed to a global operator in non-editor and old builds). This causes shado ...
[CrashReport] UE4Editor_MeshPaint!MeshPaintHelpers::FillVertexColors()
OLD - Anim - Jun 27, 2017This is a common crash in the 4.16 release. Users have not provided any descriptions, so additional information is currently unavailable. Source Context 804 elseif (USkeletalMeshComponent ...