Unreal Engine Issues
Unreal Engine Issues
Physics Constraint Actor Won't Disable Collision Between Two Actors That Are Already Colliding
UE - Simulation - Physics - Feb 17, 2020Meshes that are colliding that are set as constraint actors don't follow the Physics Constraint Actors "Disable Collision" parameter if they are colliding prior to being set as constrained actors. ...
World Space Transparent Widgets Have Motion Blur
UE - Editor - UI Systems - Feb 24, 2020When a world space widget has their blend mode set to transparent they look blurry in motion. The effect is more pronounced when the camera rotates instead of when it is translated. Found in 4.24.2 ...
Datasmith - Materials cropped different fields in the same bitmap only display one texture
UE - Editor - Content Pipeline - Datasmith - Exporters - Mar 16, 2020Material cropping in 3DS Max doesn't seem to translate well into Datasmith when they are used in the same bitmap. This was reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4.23.1 ...
Memory leak after simulating in Editor with opened 'Editor Preferences' tab
Tools - May 7, 2020This can be repeated many times before the editor crashes without any messages and other programs with the video driver crashes too. Because out-of-memory. This is similar to [Link Removed]. This w ...
ShooterGame clients can fail to connect to a server under packet loss when network encryption is enabled
UE - Networking - Jul 17, 2020ShooterGame demonstrates the issue where when encryption is enabled, if the (unencrypted) EncryptionAck message is dropped, the resent messages will be encrypted since the server has enabled encrypt ...
Assets are not discoverable after re-adding Feature Pack to project
UE - Editor - Content Pipeline - Content Browser - Aug 11, 2020.uasset files that were deleted then re-added to the Content Browser are not properly discovered and added to the explorer. I have confirmed these assets are still on disk within Windows Explorer. T ...
Low-level memory tracking has negative values for "FMallocUnused" and "Untracked"
UE - Foundation - Core - Oct 6, 2020"FMallocUnused" is immediately bellow 0. "Untracked" is reported to go below 0 after very long playtimes (over 36 hours). Reported in version 4.25.3(CL 13942748). Tested and found negative values f ...
Widgets stick out from letterboxed player screen on 4.25
UE - Editor - UI Systems - Sep 28, 2020Note: Clipping on letterboxed player screen works fine on 4.24. This issue was brought in by CL#10541213. Here's a workaround TSharedPtr<SGameLayerManager::FPlayerLayer> SGameLayerManager::Fin ...
MoviePipeline: Python Editor example can double-up objects in-scene
UE - Anim - Sequencer - Jan 4, 2022See the UDN for sample project. This is caused by the Editor Python sample not using the UMoviePipelineQueueSubsystem, which (when rendering) blocks the Sequencer from auto-binding to PIE. The fix ...
Building Packed Level Actors causes references to break in the Packed level Actors' Blueprints
UE - World Creation - Worldbuilding Tools - Level Instances - Oct 27, 2022This is not a regression. Tested in //UE5/Release-5.0 CL 20979098 Building Packed Level Actors causes references to break in the Packed level Actors' Blueprints. Rerunning the Build > Pack Level Ac ...