Unreal Engine Issues
Unreal Engine Issues
Performance hitch when creating widgets with child widgets containing animations
UE - Editor - UI Systems - Feb 14, 2018When creating widgets that contain child widgets with animations, the performance appears when adding animations via child widgets. If the same amount of animations are created in a widget, the perf ...
Landscape Grass Tool loss of Performance
UE - World Creation - Worldbuilding Tools - Foliage - Mar 20, 2017A number of users are reporting a large drop in performance when working with the landscape grass tool compared to other foliage application methods, as well as a drop in performance since previous ...
Paper2D performance regression due to TArray resizing
UE - Graphics Features - Aug 16, 2019We've noticed after upgrading our heavy Paper2D project to 4.22 that tilemap performance has been massively degraded compared to previous versions. After some digging we found out that it's due to a ...
LogAudioMixer warning results in a decrease of performance
UE - Audio - May 21, 2020Unable to reproduce. User believes it is directly related to the speaker they are using when it goes into standby mode. If they unplug the speaker, everything runs okay. After receiving the warning ...
Performance will drop in PIE if simulate physics is toggled rapidly on an actor with attached components
UE - Gameplay - Nov 3, 2015Performance will drop in PIE if simulate physics is toggled rapidly on an actor with attached components User Description: Simulating physics for Primitive components causes severe performance dr ...
Shadow Maps performance issue with 5.4 in comparison towards 5.3
UE - Graphics Features - Shadows - Nov 20, 2024Shadow depths performance for non-VSM in certain scenes, notably those with rect lights and meshes that are set to movable, went from ~2ms to ~18ms going from UE 5.3 to UE 5.4. Setting the movable a ...
LLM: Delete LLM_IF_ENABLED if it is no longer a performance benefit, or convert all allocs and frees to use it if it still is.
UE - Foundation - Data Pipeline - Cooker - Nov 13, 2023The macros LLM and LLM_IF_ENABLED behave identically but are slightly different from a performance standpoint. For consistency all allocs and frees should use the same one. Measure the cost of a co ...
Gradual drop in Performance on Windows 10 projects after Toggling Fullscreen
Tools - Nov 30, 2015It seems that when working in any project on a Windows 10 machine, there is a gradual rise in frames per second and a consistent drop in performance. The user reporting this issue claims his frame ...
Crash when selecting an action performed in a diff between two revisions in SVN
UE - Gameplay - Blueprint Editor - Jul 6, 2015Get nasty crash when performing a diff between two revisions on a BP uasset and then select a parent section that was modified, followed by a specific action performed on that section of the BP. ...
Poor Performance when selecting an Actor track with baked transform keys
UE - Anim - Sequencer - Feb 15, 2017Poor Performance when selecting an Actor track with baked transform keys ...