Unreal Engine Issues
Unreal Engine Issues
Crash with a migrated BP actor using InstancedStaticMeshComponent
UE - Gameplay - Blueprint - Nov 28, 2016A licensee reported one of their map crashes on open when they tried to migrate from 4.12 to 4.14. There was no crash in 4.13. This seems to be caused by a certain BP actor that adds InstancedStat ...
Merge an actor that contains Instanced Static Mesh components will reset to 0,0,0
UE - World Creation - Worldbuilding Tools - HLOD - Jan 31, 2017Merge an actor that contains Instanced Static Mesh components will reset to 0,0,0. The Instanced Static Mesh components must be set using the Add Instance node through the Construction Script for th ...
Instanced Static Meshes do not Cast Shadows correctly when Baked
UE - Graphics Features - Aug 31, 2016When an instanced mesh that is added in the construction script is far enough away from the root component and has it's lighting baked the shadow will not render or will render incorrectly. This w ...
Setting Constrained Components on Begin Play Returning Warning Message
UE - Gameplay - Sep 16, 2016Adding a Physics Constraint component in the construction script and then attempting to set constrained components on begin play causes a warning to appear in the log after exiting PIE. Error Messa ...
Static mesh components spawned in the UCS along a spline require lighting to be rebuilt after a map reload.
UE - Framework - Components - Jun 17, 2021Seems to be somehow related to components being instanced in the Construction Script according to a spline. The transforms are slightly off by more than 1.e-2f. They are reconstructed on load with a ...
Packaging fails with too many instanced static meshes
UE - Graphics Features - Jun 8, 2018Project will fail to package with more than one actor containing ISM Components. From user: "...After some testing I found that it only occurs if there are multiple actors in a map (either of the ...
Crash if the number of spline points is less the one spline point currently selected
Tools - Feb 26, 2020Spline components with "input spline points to construction script" enabled causes crash when selecting a spline point and reducing the total number of spline points below the selected spline. Te ...
The World Outliner will only show one Child Actor on a Blueprint that has multiple Child Actors in its Components tab
Tools - Apr 13, 2015The World Outliner will only show one Child Actor on a Blueprint that has multiple Child Actors in its Components tab. Note that all Child Actor Components added via the Construction Script will dis ...
HDRi Backdrop Animation in Sequencer
UE - Anim - Sequencer - Apr 5, 2024HDRIBackdrop objects cannot be rotated in Sequencer. This issue can be resolved by setting the "Run Construction Script in Sequencer" checkbox to True in the "HDRIBackdrop" blueprint. If HDRI Back ...
The color picker stops working after changing the color once on a color property on a component
UE - Editor - UI Systems - Slate - Nov 13, 2019Changing the color on a component property via the color picker will cause the picker to stop working until it's closed and reopened. This occurs because a property change event is sent out, and the ...