Unreal Engine Issues
Unreal Engine Issues
Simulated physics after a delay causes physics objects to fall through one another if their collision is overlapping
UE - Simulation - Physics - Apr 25, 2016Actors that simulate physics after a delay will fall through other physics actors if their collision is touching or overlapping. Note May be related to [Link Removed] Regression? (No), issue (doe ...
Datatable shows serialization of struct variables within a struct
Tools - May 18, 2016If a datatable is created from a struct containing another struct, added rows will show serialization values in the datatable editor for struct variables. Regression (No) issue (does) occur in 4.1 ...
Delta applied twice when moving parent and grouped child actors
UE - Gameplay - Apr 8, 2016When some grouped actors are childed to another actor, and both the group and the parent are selected in the world outliner, movement delta is applied twice to the grouped children. Code for a poten ...
Physics Asset doesn't follow the Skeletal Mesh when Physics Blend Weight is set to any value between 0 and 1
OLD - Anim - Feb 9, 2017Physics Asset doesn't follow the Skeletal Mesh when Physics Blend Weight is set to any value between 0 and 1. Could be related the the fix for this JIRA: https://jira.it.epicgames.net/browse/UE-192 ...
Collision Meshes Are Ignored Until FBX Is Reimported
Tools - Feb 20, 2017When importing a mesh with it's collision geometry and its LOD meshes all contained within the same group it won't import the collision geometry correctly. This can be fixed by simply right clicking ...
Material Slot Names Get Replaced With "None" After Merge Actors Operation
Tools - Mar 23, 2017After merging two actors the resulting merged actor's slot names will be replaced with "none". Fixing this is a very tedious process for our licensee since there usually is a large amount of slot ...
Private lobbies cannot be invited to on Steam
UE - Online - May 13, 2019The old method doesn't work with private match invites as it doesn't have the right security permissions. It's still valid for dedicated servers. It also doesn't work properly with lobbies on VR eit ...
Montage Root Motion does not work from sub anim instances
UE - Anim - Gameplay - Oct 25, 2019Root motion from sub instances is not used when the parent instance is marked as 'Root Motion from Montages Only'. Proposed fix is to modify USkeletalMeshComponent::IsPlayingNetworkedRootMotionMo ...
ISM Component in an instanced BP does not take into account changes to NumCustomDataFloats from the BP class
UE - Graphics Features - Sep 16, 2022PerInstanceSMCustomData is bulk serialized and doesn't get changed on the BP instance when changing NumCustomDataFloats, possibly causing out of bounds array access leading to a crash. Possible sol ...
FMaterialResource::IsDualBlendingEnabled bug
UE - Rendering - Architecture - Materials - Jul 24, 2023The user has a proposed fix for this in the case. FMaterialResource::IsDualBlendingEnabled needs the following modification that includes MaterialInstance check: bool bMaterialRequestsDualSourceBle ...