Unreal Engine Issues
Unreal Engine Issues
Implemented Interfaces are not added to nativization list
UE - Gameplay - Blueprint Runtime - Jan 25, 2017Implemented interfaces are not added to the list of assets to nativize when the blueprint class that implements them is flagged for nativization, saved, and compiled. This results in a package failu ...
ComponentOverlapMultiByChannel with a rotated simple collision PrimComp misses overlap vs. complex collision
UE - Simulation - Physics - Query - Nov 8, 2023UWorld::ComponentOverlapMultiByChannel and internally, the call to FBodyInstance::OverlapMulti, misses overlaps and blocking hits when the PrimComp's (the component used to test overlaps) mesh uses ...
Different Number of Frames imported from the same FBX between UE 4.8 and 4.9
OLD - Anim - Sep 14, 2015Using the same import settings in UE4.8 and UE4.9 will result in a different number of frames of an animation being imported from the same FBX file. If you import the same fbx animation which in M ...
Instanced object in an array property of an actor component is invalidated and marked for garbage collection on undo
UE - Gameplay - Jun 4, 2024If an actor component contains a TArray of instanced objects, some of those object instances can get incorrectly invalidated and marked for garbage collection in certain situations, possibly resulti ...
Assigning APX Cloth asset to material element
UE - Simulation - Physics - Character - Jun 17, 2016When assigning an imported apx file to the clothing drop down under the material element of this imported Skeletal Mesh will result in a crash. Tested in: 4.11.2 CL-2946394 4.12.3 CL-3013449 Dev ...
Setting a value Material Parameter Collection to Material will cause crash
UE - Graphics Features - May 2, 2016Adding a Material Parameter collection to a material, setting its value, then saving the material will cause a crash. This was only able to be reproduced on Mac and did not affect the Windows versio ...
IPA Package Sizes have Increased between Versions
UE - Platform - Mobile - Feb 21, 2017When packaging for iOS the IPA file seems to have increased in size from previous versions. The licensee made an important observation that it appears the master materials have almost halved in si ...
Package fails for android if company name begins with a number
UE - Platform - Mobile - Apr 26, 2017If the company name has a number at the beginning of it when packaging for android it returns a series of errors and does not allow the project to be built. The error that is being shown in the outp ...
Shader compiler errors when using enclosed local variables in a material while ray tracing is enabled
UE - Rendering Architecture - RHI - Jan 23, 2020A licensee is seeing an issue with a couple of post process materials after enabling ray tracing. While the materials presenting the issue fail to compile for different reasons, they both refernce t ...
Some materials render black on Iphone 6 series phones
UE - Platform - Mobile - Oct 6, 2016Some materials are not rendering on iphone 6 series devices. They will render completely black on one device but not others in the same series. Replacing the material with a basic material renders o ...