ForEachLoop doesn't iterate through all of the actors returned by the Get Overlapping Actors node

UE - Gameplay - Blueprint - Apr 10, 2015

ForEachLoop doesn't iterate through all of the actors returned by the Get Overlapping Actors node. Note: You can workaround this issue by adding the overlapped actors to an array and then looping t ...

Default values specified for local BP variables of type DateTime and Timespan don't actually work

UE - Gameplay - Blueprint Runtime - Nov 6, 2020

Have attached examples of this in action, including breakpoints showing the FDateTime::Ticks count as zero. Also showed that this is an issue for the existing GetYear/GetMonth/GetDay methods (and an ...

Using Tortoise SVN causes the engine's source control to be inconsistent

Tools - Jun 16, 2015

If a user decides to use Tortoise SVN, the error messages given for needing to have things checked out is inconsistent. If there is a blueprint which references another blueprint, and the reference ...

ARKit portrait image aspect ratio incorrect on iPhone 6s,7, probably all phones.

UE - Platform - XR - Nov 29, 2017

As described in this UDN thread, the iPhone 7 manifests incorrect image aspect ratiohttps://udn.unrealengine.com/questions/403841/ios-arkit-portrait-mode-stretching-on-iphone-7.html [Link Removed] ...

Differences in DistanceToNearestSurface and DistanceFieldGradient results between 4.27 and 5.0

UE - Graphics Features - Apr 27, 2022

In the UE5 case, we end up seeing very harsh lines in both the gradient and the distance to nearest surface examples whereas the results in 4.27 appear smooth.  It was also interesting to observe c ...

FKConvex::ElemCalcAABB ignoring current transform.

UE - Simulation - Physics - Apr 15, 2016

FKConvexElem::CalcAABB was ignoring the elements currently defined transform, and only scaling. This means that any actor that has a transform (not just Merge Actors) could potentially have very dis ...

NPC - Instances does not get updates from changes to the parent Niagara Parameter Collection in the editor

UE - Niagara - Oct 4, 2024

When an Niagara Parameter Collection (NPC) is selected as the parent Collection for an NPC Instance (NPCI), all of its current parameters are carried over to the NPCI with their current values as th ...

Inaccurate motion vectors when using different position binding in renderer

UE - Niagara - Rendering - Jul 27, 2023

Even though the particles are not moving, and the velocity is zero, the output motion vectors are non-zero. This seems to only happen if using two sources of particle positions.  ...

On Hit Events are inconsistent/inaccurate when using Substepping most notably at lower frames per a second

UE - Simulation - Physics - Dec 9, 2021

This is a regression Tested in: //UE4/Release-4.27 CL18319896 Binary //UE5/Release-5.0-EarlyAccess CL16682836 Binary Under the same conditions in UE4 the On Hit events fire accurately and as expect ...

Packaged iOS project incorrectly includes level not selected to be cooked

UE - Foundation - Core - Cooker - Oct 11, 2017

When packaging for iOS on a Mac, the default level for a project will always be included in the packaged project even if it was not selected to be cooked and packaged. The expected behavior is that ...