A WaterBody blueprint class with an added component will not compile if Blueprint Nativization is enabled

UE - Graphics Tools - Terrain - Water - Nov 23, 2021

This is Not a regression. Tested in: //UE4/Release-4.26.2 CL15973114 Binary - Reproduced //UE4/Release-4.27.1 CL17735300 Binary - Reproduced When adding a component to a Water Body actor it should ...

CaseIssues with Korean input in Window 11

UE - Editor - UI Systems - Jun 14, 2023

When entering Korean in the EditableBox on Windows 11, the two Korean characters after pressing the Space key are not entered. I confirmed that it occurs in UE5.1 and UE5.2, and it does not occur i ...

Performance issue with the material dock

TM - Tools - Oct 1, 2025

See video. Tested on 2025.2  In a project where you have a lot of materials, it take a long time to open the material dock. Here around 20 seconds. And that's at each time you want to enter it. Y ...

Float Curve evaluation may yield completely wrong results due to floating-point precision issue

UE - Anim - Runtime - Oct 31, 2024

Note: This is possibly related to [Link Removed]. For some inputs, function UE::Curves::WeightedEvalForTwoKeys() inside file "CurveEvaluation.cpp" can incorrectly return the value of the first key, ...

Running traces consecutively sometimes register incorrect hits

UE - Gameplay - Apr 6, 2015

If two line traces are run one right after the other to the same end point but different start locations, at times the second trace will incorrectly register hitting other objects though the trace l ...

Ease node "Shortest Path" auto sets to true after closing and reopening editor

UE - Gameplay - Blueprint - Mar 9, 2015

UPDATE: 3/10/2015 User reported manually adding a separate boolean value causes that value to automatically switch to true upon reloading editor as well. No current workaround is available. ======= ...

Hidden Actors on the foliage menu re-open when the editor is re-opened

UE - World Creation - Worldbuilding Tools - Foliage - Nov 18, 2014

If a user hides the details of a foliage actor in the foliage tool menu, then saves and closes the editor the details will re-open upon re-opening the editor. ...

Physics are inconsistent between PIE and Standalone

UE - Simulation - Physics - Apr 16, 2015

A user has found that they are seeing differences in how objects are affected by physics in Stand alone as apposed to PIE. While testing the amount of force applied to an object in the different pla ...

EQS Query Not Detecting Different Floors

UE - AI - Jul 7, 2016

Running an EQS for something such as finding a random point on a grid will not generate results on multiple floors. See the attached screenshot for an example. Was unable to reproduce in 4.11.2 d ...

Match3 Crashes on IOS and Android when Packaged using Nativized Blueprint Assets

UE - Gameplay - Blueprint Runtime - Aug 19, 2016

Match3 crashes shortly after being opened on both Android and IOS devices when the experimental blueprints option "Nativized Blueprint Assets" is enabled. Verified that the issue does not occur if ...