Unreal Engine Issues
Unreal Engine Issues
NormalizePackageNames() should interpret 'exclude developer folders' to also exclude packages in ExternalActors and ExternalObjects
UE - CoreTech - Oct 14, 2022In NormalizePackageNames() (PackageUtilities.cpp), there is a PackageFilter parameter, which can be set to exclude developer packages (NORMALIZE_ExcludeDeveloperPackages). The code only checks the b ...
MoviePipeline: Panoramic Renders don't work
UE - Anim - Sequencer - MRQ - Nov 10, 2022Images aren't just under exposed, they have values of 0.0 even in exrs - enabling the Debug Settings and writing out all samples shows the GPU is actually rendering black. ...
[Audio][Niagara] - Audio Spectrum only reacts to Channel 0, despite setting to another channel
UE - Audio - Submixes - Jun 6, 2023While doing some extra testing of the Submix Analyser fixes, I noticed there is a setting to set the channel of the submix to give the analyser. It always works for channel 0, but changing it to any ...
Disabling Grid ShowFlag also hides billboard sprites and volume outlines
UE - Graphics Features - Nov 8, 2023The following odd behavior did not happen until UE 5.2, but happens in the latest UE 5.3. When the "Grid" show flag is disabled in the Level Editor Viewport, all billboard sprites and volume outlin ...
Crash when using CastChecked<>(nullptr, ECastCheckedType::NullAllowed) in configurations where checks are disabled
UE - CoreTech - Jun 19, 2025When using CastChecked<>(), the second parameter can be passed as ECastCheckedType::NullAllowed to make the check succeed when the input is nullptr. However, in UE 5.5 up to the latest engine versio ...
Crash when using VR Mode with Extra Viewports and a Camera Actor
UE - Editor - Workflow Systems - Jul 6, 2019From User: "Normally UE4 has an "Eject" button which is great for live-debugging your app, because you can see everything that's happening in your world, and see the World Outliner in realtime whil ...
Nativization of Blueprint Subclass of PlayerStart fails
UE - Gameplay - Feb 23, 2018Fail to package with nativization. cannot convert from 'USceneComponent *' to 'UBillboardComponent ...
Mobile VR - Foliage (HISM) crash
UE - Platform - XR - Jun 7, 2019HISMs cause mobile VR app to crash. Confirmed in 4.23 MAIN @ CL 6829265 ...
Auto Align Floor to Mesh causes floor to align well below the mesh
OLD - Anim - Aug 28, 2015NOTE: This is likely a known issue, but I could not find an existing bug for tracking Auto Align Floor to Mesh causes floor to align well below the mesh. Causes the mesh to float I've tried with ...
Inputs and Outputs missing in Details pane on Interface function that has been transferred to local function
UE - Gameplay - Blueprint - Aug 12, 2015After removing an interface from a blueprint, any interface functions in the blueprint can be transferred to a local function. However, after this occurs, the inputs and outputs are removed from the ...