Unreal Engine Issues
Unreal Engine Issues
Adding Niagara system to a projectile causes a crash
UE - Niagara - Jul 29, 2019Adding a Niagara system to a BP_Projectile in a C++ First Person Project and then restarting it causes the editor to crash. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 744 ...
Anim sequence in DLC leads to crash in IOS.
UE - Platform - Mobile - May 19, 2020DLC download is working as expected but opening a map with anim sequence which is located at DLC's pak file will lead to crash in iOS. ...
Transform gizmo behaves incorrectly in the Blueprint editor viewport if multiple child components are selected and their parent component is rotated 90 degrees around Z.
UE - Framework - Blueprint Editor - Nov 12, 2020When multiple child scene components are selected and their parent is rotated 90 degrees about Z, attempting to use the transform gizmo will move the components in the wrong direction relative to th ...
Motion blur on player/weapons with TAA
UE - Graphics Features - May 27, 2021Looks like this can occur with motion blur off aswell, so likely it's a TAA motion vector issue. Similar issue occurs in UE5 (see [Link Removed]) ...
Renaming a SkinnedMeshComponent onto a different owning actor will cause issues with FAnimUpdateRateManager
UE - Anim - Runtime - Aug 12, 2021As mentioned in the UDN - the user tried to rename an SMC to a different actor, which leaves the URO manager left with an incorrect data as it is not aware of the move. User proposed overriding Post ...
There's no motion blur on streaming GeometryCache
UE - Editor - Content Pipeline - Datasmith - Sep 28, 2021UDN customer mentioned: "there looks to be support for motion vectors as exported from DCC apps (for rare cases like fluid sim), but regular in-engine motion vector calculation for regular motion bl ...
fbx Importer: Make sure the user has more feedback on the automatic import framerate
UE - Editor - Content Pipeline - Import and Export - Oct 4, 2021If a user import a lot of animation in one fbx, the logic that compute the automatic framerate can diverge and hit a very high value. The maximum sample rate is 1920Hz which is very high,. The user ...
GetMeshClothingAssetBindings have some fallback that break nested calls
UE - Editor - Content Pipeline - Asset Build - Dec 9, 2021Only the first call to unbindAndBackup should have the backup, this fallback create backup data for the nested call. ...
FScriptMapHelper::HasKey() and FScriptSetHelper::HasElement() fail on new keys with a substring of another key
UE - Editor - Workflow Systems - Jan 27, 2022Duplicate key checking in maps and sets in the editor is done via calls to FScriptMapHelper::HasKey() and FScriptSetHelper::HasElement(), but this code is checking for object names which are subsets ...
References to recompiled Blueprint CDOs that exist outside of the immediate class hierarchy are not being replaced during compilation.
UE - Gameplay - Blueprint Compiler - Feb 24, 2022Currently, the Blueprint compiler will only update references to a reinstanced CDO/archetype object if it falls within the immediate hierarchy of the Blueprint class type OR if it's a component temp ...