Unreal Engine Issues
Unreal Engine Issues
Particle Mesh Emitters Cause Heavy FPS Stutter
UE - Graphics Features - May 4, 2018Per User: After updating my project from 4.18 to 4.19, I started getting huge FPS drops at regular intervals. I managed to trace back the issue to particle systems with mesh emitters and could repr ...
UMaterialBillboardComponent Memory Leak and Hitching (Unreal 4.19.2 + 4.19.1)
UE - Graphics Features - May 4, 2018Creating an actor with a UMaterialBillboardComponent causes Editor hitching. ...
Sequencer does not support Quaternion Rotation when manipulating transform tools or piloting cameras
UE - Anim - Sequencer - Oct 16, 2015Noticing an issue when keying a camera and then playing back the animation it turns or spins in directions i never intended. Think we need check box for toggling Use Quaternion linear interpolation ...
Preformance drop when calling draw to render target
UE - Graphics Features - Jun 19, 2018There is a major performance drop after 4.18 when calling draw material to render target. This is an issue reported by many community members, and there seem to be additional reports with different ...
Unable to build a local installed build of the Engine with only VS 2017
UE - Foundation - Core - Oct 17, 2017I was unable to reproduce this locally, but a licensee reported having trouble creating a local installed build of the Engine with only Visual Studio 2017 installed. The licensee reported that the S ...
Interface with one or more BlueprintNativeEvent declarations will lead to a compile failure during packaging with Blueprint nativization enabled.
UE - Gameplay - Blueprint - Nov 14, 2017In the UHT boilerplate that's generated for the FGUseableInterface type, there is a pure virtual declaration that's emitted for the BlueprintNativeEvent's required _Implementation() method: #define ...
When updating stats on a Steam leaderboard, the only option currently available is to add the new value to the old value.
UE - Online - Dec 23, 2015When trying to update a Steam leaderboard, the source code currently adds the new value to the old value instead of replacing the old value with the new value. This works fine for something like a T ...
Compile 'Note' on BP Interface events
UE - Gameplay - Feb 23, 2017Compile 'Note' on BP Interface events. It happens in actor BPs and also BP Widgets. A similar issue was fixed back in 4.11 with Custom Events. Could be related? https://jira.it.epicgames.net/brows ...
Nativized build will crash on load if a member variable in a nativized parent Blueprint class references a non-nativized child Blueprint class asset.
UE - Gameplay - Blueprint - Aug 9, 2017This occurs because there exists a circular reference between the nativized parent BP and the non-nativized child BP asset (which is a data-only Blueprint in this case). Current suggested workaroun ...
Blueprints stay marked as dirty for compilation when using reroute nodes without blueprint compilation manager
UE - Gameplay - Blueprint Compiler - Mar 24, 2018A licensee has reported a problem where having reroute nodes causes blueprints to always be dirty after being compiled when the new compilation manager is disabled. Regression?: No This occurred in ...