Unreal Engine Issues
Unreal Engine Issues
Snap to Bone doesn't actually affect the rotation of a Constraint in the PhAT editor
UE - Simulation - Physics - Feb 20, 2018Snap to Bone doesn't actually affect the rotation of a Constraint in the PhAT editor. The visualizer does show the expected rotation but the Constraint will still rotate in the same direction it was ...
FMD5::Update can crash when used with packages larger than 2^31
UE - Foundation - Core - Cooker - Dec 21, 2018This bug was reported by Nurulize on UDN: UPackage::Save calls FMD5::Update at line 5918 The bug comes from the fact that Writer->TotalSize() is int64 vs the 2nd parameter of FMD5::Update which ...
4.14.2 Binary Debug Crash does not show up in Crash Reporter
CrashReporter - Web - Dec 21, 2016Crashes from 4.14.2 Binary are not populating in Crash Reporter website - [Link Removed] This is not the case in P4 builds. This is a regression from 4.14.1 ...
Attempting to build MinidumpDiagnostics with Visual Studio 2015 Update 2 results in failure
UE - Foundation - Core - Jun 7, 2016When attempting to build the Minidump Diagnostics project from the UE4 source, it will fail if you're using Visual Studio 2015 Update 2. Please note that this does not occur in the base VS2015 or wi ...
SplineMeshComponent's collision will start to distort the longer the Spline becomes
UE - Gameplay - Nov 30, 2016SplineMeshComponent's collision will start to distort the longer the Spline becomes This is a regession. It was working in 4.13.2-3172292 User Description: When drawing out a long spline mesh ( r ...
Navmesh breaks after hitting build or build>paths after upgrading to 4.7.2
UE - AI - Mar 10, 2015Navmesh breaks and repeats pattern from individual landscape section when a project is updated to 4.7.2 and then build or build paths is pressed. ...
Hair Shadows Not Affecting SSS Back Scattering (Subsurface Profile)
UE - Rendering - Graphics Features - Mar 30, 2026Groom strands do not appear to correctly block transmitted light for Subsurface Scattering Profile Materials. In some cases, not only will they not block the light, but can instead lead to more ligh ...
Crash when Matinee with 2 Event Tracks stopped from one of the Event Tracks
Tools - Mar 16, 2015When stopping a Matinee from an Event Track via the level blueprint, if you have 2 Event Tracks the editor will crash. Also Reproduced in Main Promotable-CL-2479729 ...
HLOD Build crashing when building nanite for mesh with 2 material having the same parameters
UE - World Creation - Worldbuilding Tools - HLOD - Dec 2, 2023From Licensee: Catching the exception with debugger allowed us to find a list of materials on the hlod mesh on which the error occured and we were then able to link it to one of our meshes causing ...
Particle Cutout Crashes On Certain Devices (Samsung Galaxy Note 2)
UE - Platform - Mobile - Aug 12, 2016As soon as a particle system using the Particle Cutout feature appears a crash occurs. I used the Samsung Galaxy Note 2. Its asset number is 2894. I've attached the logs from the test on engine vers ...