Unreal Engine Issues
Unreal Engine Issues
Modulate Blend Mode on Deferred Decals does not seem to multiply with background pixels
UE - Rendering Architecture - Materials - May 10, 2022Modulate Blend Mode on Deferred Decals does not blend multiply with background pixels. Transparency for Deferred Decals also does not seem to match with what occurs in 4.27; Repro Rate: 4/4 Tested ...
Crash in FPrimitiveSceneProxy::UpdateInstances_RenderThread in CitySample
UE - Rendering Architecture - May 5, 2022The following check fails occasionally: check(InstanceCustomData.Num() == (NumCustomDataFloats * InstanceSceneData.Num())); I was not able to narrow down more precise repro steps, but it appears t ...
Include Render Pass name as variable in Filename Format field
UE - Anim - Sequencer - Jan 4, 2016When outputting with Custom Render Passes, the Render Pass is automatically added at the end of the output frame file name. We have a few variables that we can control in the FileName Format sectio ...
[CrashReport] UE4Editor_UnrealEd!SaveWorld() [filehelpers.cpp:359]
Tools - Aug 31, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: !bIsReentrant [L ...
OnParticleCollide Not Returning Velocity Values Properly
UE - Graphics Features - Oct 23, 2017OnParticleCollide doesn't return Velocity on every collision. User description: "If you add a particle emitter, and add an Event Generator - Collision and Actor Collision Binding an event to tha ...
[CrashReport] ispc_texcomp!<Unknown> - while launching to Android
UE - Platform - Mobile - Oct 25, 2017This is an early crash coming out of 4.18 that appears to occur when launching projects onto Android devices. It also seems frequently related to ARCore. User DescriptionsSo this is the example pr ...
NetDriver time becomes unusable after long running sessions
UE - Networking - Jan 8, 2018This issue has been around for a long time (potentially UE3). UNetDriver::Time is a float, which is updated by accumulating Delta Time during ticks. This means the longer a game runs, and the highe ...
Pausing simulation in PIE does not pause looped timers on the Server when players is set to more than 1
UE - Networking - Feb 4, 2016Pausing simulation in PIE does not pause looped timers on the Server when players is set to more than 1. The Client pauses the timer as expected. With only one player, timers are paused as expected. ...
'Use Translucency Vertex Fog' does not work on Metal
UE - Graphics Features - Nov 15, 2016'Use Translucency Vertex Fog' does not work on Metal despite the following release notes: According to 4.13 Releases Notes:[Link Removed] "New: Shader Model 5 Rendering for Mac Mac Metal now has i ...
Blueprint Editor Layout is not properly saving
UE - Gameplay - Blueprint Editor - Oct 19, 2016There are some weird things happening with layout recently, like UE-37541 which doesn't allow the user to save their layout, then reset it to the saved layout. Interesting thing to note is that wh ...