Unreal Engine Issues
Unreal Engine Issues
Behavior Tree Visualizer Runs Sequence Tasks in Parallel
UE - AI - Dec 19, 2016Tasks in the behavior tree are visually represented as running parallel to one another instead of sequentially when looking at the behavior tree visualizer. This does not seem to have an effect on f ...
The previous value of a struct passed to a RepNotify may be incorrect
UE - Networking - Dec 17, 2018Replicated structs with multiple properties can have the wrong previous value passed into their rep notify functions if all of the properties do not change in any given frame of replication to the c ...
Widget text fields to not remain highlighted after making changes
UE - Editor - UI Systems - Mar 6, 2019When making changes to the properties of widgets in the details panel, the text fields to not remain highlighted. This functionality appears present in other areas of the engine. Such as when dealin ...
4.24 Instanced Stereo Distortion Error in ComputeBufferUVDistortion
UE - Graphics Features - Nov 13, 20194.24 moves distortion calculations to the file DistortionCommon.ush and its`ComputeBufferUVDistortion` function. The code in the INSTANCED_STEREO define no longer works as `Interpolants` isn't passe ...
Read-Only UI Components Don't Receive Input Events
UE - Editor - Jul 18, 2023Custom context menus will not function when the property they are attached to is read-only, as the input events no longer make it to our customization, but seem to get intercepted higher up the cha ...
Autokey does not respect min and max limits of control rig animation channel.
zComponent - Archive - Dec 16, 2024When using min or max set values for animation channels in sequencer, the sequencer viewport will show different values than what is capable when using autokey functionality. ...
Path Tracer Normals Issue
UE - Rendering - Features - Path Tracer - Oct 29, 2025Path Tracing normal maps reflect light differently than Lit, and do not look accurate. Also observed in //UE/Release-5.6, CL: 45232827 ...
Adding components in an Actor then undoing them leaves sub-components
UE - Gameplay - Aug 14, 2018Adding components in an Actor then undoing them after an action in the Viewport, leaves sub-components behind. This is a regression from 4.19.2 (CL-4033788). This issue was reported and tested in 4 ...
Mouse capture gets caught by default created PlayerController
UE - Editor - UI Systems - Slate - Dec 12, 2016In PIE games, it looks like this may be caused by the window immediately taking control of the mouse and setting up focus. In networked games, clients call ULocalPlayer::SpawnPlayActor which will c ...
Unable to select SimplePivotPainterExampleMat Instance's parameter settings if Param button is disabled
Tools - Aug 31, 2017When going through the engine content you are unable to select SimplePivotPainterExampleMat Instance's parameter settings if Param button is disabled. If the button is enabled the settings appeared ...