Unreal Engine Issues
Unreal Engine Issues
When Niagara is set to DesiredAge in Sequencer, the processing load increases after play
UE - Niagara - Cinematics - Jun 3, 2021This does not happen in 4.25.4. It has been confirmed to occur with 4.26.2 and UE4main. After playback is complete, a large amount of stalls can be seen in Insight. ...
Scene Capture set to depth only renders the full scene instead of only processing depth.
UE - Virtual Production - Rendering - Oct 26, 2021A licensee has also recommended a fix for this issue, please see the UDN link for details. Example renderdoc capture of the issue can be found here - [Link Removed] ...
CableComponent particles spawn at origin when gameplay starts depending on component registration order
UE - Framework - Components - Jan 9, 2025A workaround was provided for the user, to use 'Set Attach End to Component' nodes during BeginPlay. While this fixes the issue in gameplay, the editor preview no longer syncs with gameplay. ...
Crash when compiling Blueprint class based off C++ actor with a Niagara component that has a user color curve
UE - Niagara - Mar 6, 2020When creating a blueprint class based on a C++ actor with a Niagara component, color curves will cause the editor to crash when compiling the blueprint. This will impact users creating their own cla ...
M_Cave_Ground_Mud has an error which keeps floor in Particle Effects Sample from Rendering
Docs - Samples - Sep 29, 2015Something must have changed with how LERP's or Vector Transforms deal with a float 0 value, which breaks this particular material Error:[Image Removed] Fix:[Image Removed] ...
FPS when adding instanced static meshes in a random order is significantly lower than adding them in order by X,Y,Z location
UE - Simulation - Physics - Apr 5, 2017Adding instanced static meshes in a random order by location gives 25% of normal frame rate, compared to adding them in order by X,Y,Z location. ...
Plugin Type breaks XCode syntax hightlighting
UE - Platform - Apple - May 16, 2017Setting a plugin module's type to "Editor" causes syntax highlighting in XCode to break for .cpp files in that module. Setting the type back to Runtime fixes the behavior ...
[CrashReport] UE4Editor_PropertyEditor!FDetailCategoryImpl::GetParentLayout() [detailcategorybuilderimpl.h:166]
Tools - Aug 22, 2017This is an intermittent crash occurring in the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. The callstack is similar to [Link Removed], fixed i ...
SSGI AO not visible in Lit Viewmode
UE - Graphics Features - Dec 16, 2019No screen space AO in lit viewmode with SSGI Confirmed in 4.25 MAIN @ CL 10730208 (but you must move camera after activiating SSGI for scene to update) ...
DistanceFieldBentNormalAO does not appear to work with imposter UVs
UE - Graphics Features - Aug 26, 2021I have not entirely ruled out any issues with the imposter material in the repro, there's a chance this is related to the normal rotations, but turning off distancefields entirely does fix the issue ...