Unreal Engine Issues
Unreal Engine Issues
Twinmotion hangs when importing an .obj file.
TM - Interoperability - Feb 1, 2024Reported by client in SF [Link Removed] When importing an obj file, Twinmotion hands during the import. This only occurs in 2023.2.1 and does not occur in the 2023.1.2 version or earlier. Was able ...
Number containers do not correctly parse equations
Tools - Jul 30, 2020In C++, arithmetic operators * and / have the same priority and therefore should be resolved left to right. In this case, * is being resolved first and / second. 1/128*128 and (1/128)*128 should p ...
If CustomNearClippingPlane of UCineCameraComponent changed, it will be reflected in normal CameraComponent as well
UE - Anim - Sequencer - Feb 17, 2023CustomNearClippingPlane of UCineCameraComponent is new property in 5.1, but if use change this, it will also be reflected in the normal CameraComponent's NearClip. This is because the PerspectiveNe ...
Crash when creating StaticMesh repeatedly
Tools - Nov 21, 2014UE4Editor crashes when creating static meshes. Event at startup time while it tries to create default object it crash sometimes. ...
Rendered panoramas using Lumen may be overexposed
TM - Rendering - Sep 30, 2025Reported in SF [Link Removed] Lumen Panorama renders in 2025.2 may appear overexposed compared to the viewport, or when comparing the same render produced in 2025.1.1 This only appears to occur wi ...
Controller input changes for network players based on which window has focus
UE - Gameplay - Input - May 23, 2016When testing networked multiplayer with two controllers, if the server window (editor) has focus, controller 1 controls the server character and controller 2 controls the client character. If the c ...
When importing Destructible Mesh chunks, the imported chunks are larger than the Mesh
UE - Simulation - Physics - Destruction - Mar 6, 2020The Imported Destructible Mesh chucks are not to scale when compared the original mesh and appear much larger. This was reported and tested in 4.23.1 (CL-9631420). This was reproduced in 4.24.3 (CL ...
Cannot set auto success range to an invalid value in the AIPerception component
UE - AI - May 3, 2019When modifying the value of "Auto Success Range from Last Seen Location" to a value that is not it's default, you can not set it back to its default -1 one value. This was reported and tested in 4 ...
ObjectPivotPoint does not work with instanced Nanite meshes
UE - Rendering Architecture - Materials - Nov 17, 2022Regression: Nanite Foliage is a new feature in 5.1, so this issue is not reproduceable in 5.0. Notes about this new support can be found under Nanite Improvements in https://docs.unrealengine.com/5. ...
BlendListByEnum assumes that enum values are sequential
UE - Anim - Runtime - Anim Blueprints - Aug 26, 2024FAnimNode_BlendListByEnum assumes that values within a custom enum type are sequential (ie. the index 0 = value 0, index 1 = value 1). But this is not true of all custom enum types, for example: U ...