Unreal Engine Issues
Unreal Engine Issues
Corrupted Japanese text when packaging for Android
UE - Platform - Mobile - Apr 17, 2020Garbled text is displayed when creating Android package. It did not occur in my colleague's environment using English OS, but occurred in my environment using Japanese OS. This issue should be fixed ...
Orientation Warp Node Missing from ABP_Manny BP After TPS C++ Project Restart
UE - Anim - Gameplay - May 10, 2022Occurs 3/3 times. Orientation Warp plugin is missing from ABP_Manny BP in the TPS C++ project after project restart. Regression does not occur: Animation Warp plugin is not available in //UE4/Rel ...
Body Instance property changes made in construction scripts are not applied
UE - Simulation - Physics - 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]. This change causes BodyInstance t ...
Crash when removing mesh and undoing in Character Blueprint
UE - Gameplay - Blueprint Editor - Aug 9, 2023When removing a mesh from a Character BP and undoing the engine will crash. This issue is occurring in //UE5/Release-5.3 @ CL 26560699 This issue is NOT occurring in //UE5/Release-5.2 @ CL 2600198 ...
Static Offset in IK Retargeter does not save position when restarting the editor
UE - Anim - Rigging - Retargeting - Sep 19, 2023When editing an IK retargeter, a static offset's value will get reverted to zero when UE is restarted. Tested in the following: //UE5-Release-5.3-CL-27405482 //UE5/Release-5.2-CL-26001984 ...
Capturing backtrace of another thread in engine built with clang raises access violation exception
UE - CoreTech - Jan 11, 2024Engine built with Clang throws an exception when calling RtlVirtualUnwind with a different thread ID. Engines built with Microsoft compilers do not occur this problem. For example, if starting PI ...
Linker Instancing Context duplication results in OOM
UE - World Creation - Worldbuilding Tools - OFPA - Aug 16, 2024In order to fix a major issue involving dissapearing actors during cook, we added instancing context duplication in 31925640. This actually undoes the optimization made from 26543720 Both reported ...
UE5.6+ - Mutable - IDPrefix crash when combining Child Objects, Add to Mesh Component and Extend Mesh Section.
UE - Anim - Mutable - Jul 21, 2025So the issue seems to be a combination of Add To Mesh Component and Extend Mesh Section. I've tried this in Epic Launcher 5.6, 5.6 in-house modified engine as well as ue5-main 5.7 from git (editor ...
GetOverlappingComponents does not work on Mobile
UE - Simulation - Physics - Jun 13, 2016The GetOverlappingComponents node isn't working correctly on mobile devices. It seems like it may only not be registering components that are spawned at runtime, as it does change the number of over ...
CharacterMovementComponent::ApplyRepulsionForce uses the BodyIndex incorrectly as a bone index
UE - Simulation - Physics - Oct 5, 2015The code to extract the FBodyInstance from the overlapping component is incorrectly interpreting the Overlap.BodyIndex as a BoneIndex. This results in incorrect bodies getting the force applied, as ...