Unreal Engine Issues
Unreal Engine Issues
Editor crash when Use Dynamic Material Instance is set to "True" on landscape
UE - LD & Modeling - Terrain - Landscape - Mar 23, 2018Setting "Use Dynamic Material Instance" to true in the landscape details will cause the editor to crash. Reproduced in 4.19.0 CL 3944462 and 4.20 Main. This feature is not available in 4.18.3. ...
Removing a parameter from a blueprint function in a library can cause actor classes calling it to lose their parent or instance data
UE - Gameplay - Blueprint - Oct 4, 2018Compile errors caused by an actor calling a function with something hooked up to a removed parameter can cause that actor to lose it's place in the hierarchy. Typically, the actor will be fixed once ...
Exiting VR Edit mode from simulating causes viewport mismatch
UE - Editor - Workflow Systems - Mar 5, 20169/19 VREditor sync notes: Should grey out the editor button while you're simulating ----------------------------------------- I noticed you can fix this issue by reseting the viewport by pressing t ...
Unreal crashes when you connect scalar node to scalar input, when material function has a vertex interpolator
UE - Graphics Features - Mar 19, 2018There is an issue occurring where Unreal crashes when you connect a scalar node to scalar input when the material function has a vertex interpolator. This issue causes the engine to crash, but the i ...
Editor crashes if Sequencer has keyframes for a variable that has changed
UE - Anim - Sequencer - Sep 19, 2018The Editor crashes if loaded sequence has keyframes for an actor variable that has been changed, instead of soft erroring out. This was reported and tested on 4.20.3 (CL-4369336). It was reproduced ...
Editor Crash When DFAO Viewport Has Zero Area
UE - Graphics Features - Apr 19, 2018I've reproduced this crash in 4.16, 4.17, 4.18, 4.19, and Main. Per licensee: The editor crashes if distance field ambient occlusion is enabled and a viewport is resized to have zero height. Th ...
Material Ambient Occlusion Does Not Work With Skylight Set to Movable
UE - Graphics Features - Jul 27, 2018Material ambient occlusion does not work with the skylight set to movable. Setting the material to allow static lighting will fix the issue until the level is reloaded. Found in 4.19 CL# 4033788, 4 ...
Creating SplineMeshComponents along Spline causes crash
Tools - Aug 22, 2018Attempting to procedurally create SplineMeshComponents along the spline of a SplineComponent via a derived SplineComponent class's constructor causes the project to crash. It runs into an ensure mes ...
Ensure when pasting copied nodes into an Object
UE - Gameplay - Aug 7, 2018When copy and pasting nodes from an Actor Blueprint to an Object Blueprint the Editor stalls for a bit and an ensure occurs. This issue was reported and tested in 4.19.2 (CL-4033788). This issue ...
Unable to package with a Media Player On End Reached event in a Level Blueprint
Media Framework - Sep 19, 2018If a Media Player's "On End Reached" event is present in a Level Blueprint, even if it is not being used, packaging the project will fail. An error is thrown and a callstack is given. Please see the ...