Unreal Engine Issues
Unreal Engine Issues
Beam Emitter exhibiting lagging behavior when attached to Camera in BP
UE - Gameplay - Sep 26, 2014Beam Emitter attached to a camera in a blueprint is showing lagging behavior at source and target locations ADDITIONAL NOTES: Have tried to eliminate the lagging through locking source and target w ...
FP_FirstPerson and FP_FirstPersonBP missing when adding feature packs
Docs - Samples - Dec 16, 2019When adding the first person template (bp or code) as a feature pack, an error occurs stating "Unable to read file" and a warning "failed to import". ...
Map Get Node Pins In Niagara Module Scripts Can't Search For Standard Data Types
UE - Niagara - Mar 16, 2020This wasn't like this in 4.24 (see attached images). If you create a variable Engine.Owner.Position the search will find it however. Found in 4.25 Preview 2. Reproduced in 4.26 Main. ...
Crash on loading level with Landscape by 2 PIE instances
UE - Graphics Tools - Terrain - Landscape - Jun 16, 2022IAnimationDataController::Evaluate implementations do not account for compatible skeletons
UE - Anim - Runtime - Aug 25, 2023Looks like we are missing code in the Evaluate methods similar to what we are doing in DecompressPose to account for compatible skeletons. The easiest way to repro is in a standalone game because ...
PCG causes crash when UGrassInstancedStaticMeshComponent is set as a mesh entry for the static mesh spawner node
UE - World Creation - Procedural Tools - PCG Component - May 16, 2024PCG causes crash when UGrassInstancedStaticMeshComponent is set as a mesh entry for the static mesh spawner node. ...
Overlay materials stop working when Show Collisions
UE - Simulation - Physics - Apr 7, 2025Overlay Materials are disabled when the Collision showflag is enabled. ...
GPU PCG node fails to cook if within Subgraph
UE - World Creation - Procedural Tools - PCG Graph - May 13, 2025When cooking a project that has a PCG graph with a subgraph containing a GPU node (Point Processor in the example provided), the cook fails with an illegal reference. However, the same GPU node used ...
Importing an FBX twice will cause a crash
UE - Platform - Linux - Apr 9, 2015When importing an FBX into a project if the "Import" option is chosen rather than "Import All" then importing the same FBX a second time will cause the editor to crash. ...
Drastic increase in FBX import times from 4.9 to 4.10
Tools - Dec 9, 2015The attached asset (including animation) takes 9 minutes to import in 4.10, where it takes 42 seconds in 4.8 and 4.9. You don't really notice this until you start to get up to larger assets or long ...