Unreal Engine Issues
Unreal Engine Issues
Error during packaging if nativizing a blueprint that contains a TMap with TSubclassOf as a key
UE - Gameplay - Blueprint - Jun 28, 2018Packaging with with a nativized blueprint that contains a TMap with a TSubclassOf pointer as a Key causes errors, causing the packaging attempt to fail. Regression?: No Compiling the code for the T ...
Crash upon trying to add a variable to a struct array when the details panel is locked
Tools - Jul 12, 2018Attempting to add a new element to a struct array through the details panel when the panel is locked results in a crash. Regression?: No This issue did not occur exactly the same way in 4.18, but t ...
An event with Soft Class Reference as an input that is not set causes package to fail with Nativization
UE - Gameplay - Blueprint - Jul 25, 2018Having a custom event with an empty Soft Class Reference as an input causes packaging to fail if nativization is enabled as the event nativizes with a const TSoftClassPtr<>& and the compiler cannot ...
AttachToComponent replication snapping to position instead of keeping relative location
UE - Networking - Feb 15, 2019When using AttachToComponent at runtime, the attachment does not replicate properly for some clients. The relative transform/rotation is not maintained. The user who reported this issue mentioned th ...
NumNonClothingSections logic is bad
UE - Editor - Open File Formats - Datasmith - Jul 26, 2019We use the NumNonClothing section number to iterate in the sections, this is an error if the cloth sections are not at the end of the sections array. See the following picture of a search on NumNonC ...
Body Instance property changes made in construction scripts are not applied
UE - Runtime - Simulation - Jul 17, 20207054614 was submitted to fix an issue with not being able to modify physics properties on instanced blueprints child components. This is related to [Link Removed] ...
TranslucentVolumeAmbient is darkened in InjectTranslucencyLightingVolume pass when using VSMs with r.Shadow.Virtual.ForceOnlyVirtualShadowMaps is Off
UE - Rendering - Features - Shadows - Nov 18, 2024CSM targets are still created and affect the InjectTranslucencyLightingVolume pass when moving in a project that only uses VSM causing over brightening of fog planes and other translucent meshes. r ...
Cloth - Assertion failed: SimData->LODIndex != INDEX_NONE && SimData->LODIndex <= LOD when using the rewind debugger with multiple LODs cloth
UE - Runtime - Deformable - Feb 19, 2026The LOD switching when the simulation is paused could still be causing problems when the simulation is paused while the LOD indexes are going up because there is no LOD Bias mappings by default. Se ...
The 'Console Variables' option does not Output an HTML file
Tools - Aug 23, 2016No HTML file is created when using the newly added 'Console Variables' help menu option. This option is the same as entering 'Help' into the console command window. Neither of these options produce ...
Deactivate Then Activate Ribbon Emitter Causes Flicker
UE - Graphics Features - Oct 21, 2016When setting a particle system to be active after deactivating the remaining particles still floating in the air from earlier will flicker. This is harder to reproduce when smooth frame rate is enab ...