Unreal Engine Issues
Unreal Engine Issues
SetGamePause does not affect Sequencer pause if using audio clock as source
UE - Audio - Sequencer - Oct 24, 2025We’ve run into some unexpected behavior when combining SetGamePause(true) with Level Sequences. When calling SetGamePause(true) while a Level Sequence is playing, the visuals pause correctly, b ...
Apex Cloth gets crazy after upgrade to 4.14
UE - Simulation - Physics - Dec 22, 2016It has no this issue if only open previous cloth assets in 4.14The issue happens only if reimporting or updating the .apx or .apb and assign to the material slotReimporting both FBX skeletalmesh file ...
Garbage Collection Causes Lag in MAC Project
UE - Foundation - Core - Sep 18, 2015User reports lag regardless of the Garbage Collection settings, EXCEPT: If the user changes settings to 3 then lag becomes more frequent (approximately every 3 seconds verses every 5 seconds.) *Wa ...
Crash when pressing Ctrl-Z after creating a blueprint function
UE - Gameplay - Blueprint - Feb 20, 2017Crash when pressing Ctrl-Z after creating a blueprint function *This is a regression: Working in 4.14.3-3249277 Not working in 4.15.0-3299760* Crash Reporter: Error message: Access violation ...
An InstancedStaticMesh component set to Stationary doesn't register overlaps
UE - Simulation - Physics - Dec 16, 2016An InstancedStaticMesh component set to Stationary doesn't register overlaps. However, overlaps are registered on Static and Movable. There is also an issue where actors that start overlapped with ...
Blueprint fails to compile when adding new member to struct that is an input parameter of implemented interface function
UE - Gameplay - Blueprint - Jun 3, 2016Adding variables to a structure that is an input parameter of an interface function causes a compile error in any blueprint that implements the interface until the interface is recompiled. Compile ...
GameMode::InitNewPlayer trims player name at hardcoded 20-symbols limit
UE - Gameplay - Oct 29, 2015Need to generally address how to clamp player name. InitNewPlayer seems to be the only place where player name length is enforced, and it's enforced in a poor way. Needs to be enforced uniformly acr ...
InstancedStaticMeshes disappear in Shipping builds on mobile when affected by dynamic point lights
UE - Platform - Mobile - Aug 22, 2019This ticket is to add the safe workaround for 4.23.1, with a more optimal fix coming in 4.24. ...
Unwanted black boundaries are displayed in a vertical split-screen with 3 players.
UE - Gameplay - Dec 2, 2019Floating point error from UGameViewportClient::SplitscreenInfo causes this issue. FMath::TruncToInt( 3240 /*ViewportSize*/ * 0.333f/*Ratio in SplitScreenInfo*/ ) = 1079 I suggested a following t ...
Line height for text boxes does not appear to be affected by scaling when using a scale box
UE - Editor - UI Systems - Jan 12, 2016When scaling text with a scale box the letter will begin to overlap when scaled up or become really far apart when scaling down (this is referring to the space between the top and bottom of the lett ...