Unreal Engine Issues
Unreal Engine Issues
Control Rig - Undo doesn't function correctly with proxy and multi bone controls
UE - Anim - Rigging - Control Rig - Oct 26, 2025Issue from my Technical Animator where the undo operation in Control Rig doesn't work as expected on Proxy Controls. He has recreated the issue using the "Control Rig Samples Pack" and recorded a vi ...
Increment and decrement nodes return the incorrect value
UE - Gameplay - Blueprint - Jun 23, 2015Increment and decrement nodes return the incorrect value User Description: Getting the result of the Increment Macro seems to be incrementing the variable twice. Very confusing. Is this normal? ...
Static Mesh imported from USD file has empty UV channel
UE - Editor - Content Pipeline - Import and Export - Oct 6, 2020When importing static mesh from USD file then it has the wrong amount of UV channels. Selecting a UV channel shows an empty area in the viewport. Regression: YES - not reproduced in 4.25.3 produc ...
Cross-Compiling for Linux-ARM fails to compile
Tools - Aug 11, 2015Following the directions on the wiki for cross compiling on Linux ([Link Removed]) fails when trying to package the project. ...
Override Attenuation Can't be Unchecked When Audio Component Added to Blueprint and Blueprint Attached to Actor
UE - Audio - Dec 20, 2017Checking Override Attenuation in Details < Audio Component < Attenuation disables settings that further adjust the Attenuation. Such as: Attenuation Air Absorption, Attenuation Listener Focus, Atte ...
Ensure condition failed : Unprocessed LatentActions accumulate by SetPlaybackPostion using Play method
UE - Anim - Sequencer - Nov 9, 2021If some sequencer events are added to LatentAction queue while calling SetPlaybackPostion using Play method, the events will not be digested. So the LatentActions cause that ensure condition failed ...
Local Exposure can cause large variations in PreExposure under certain conditions
UE - Graphics Features - Sep 16, 2025PreExposure is influenced by LocalExposure in PostProcessEyeAdaptation.cpp:1265. It appears when the scene is particularly dark and using manual exposure, the LastAverageLocalExposure can read a lar ...
Steam VR overlay not available when launching packaged game on Oculus Rift through SteamVR without disabling Oculus plugins
UE - Platform - XR - Sep 26, 2017Steam VR overlay not available when launching packaged game on Oculus Rift through SteamVR with -hmd=steamvr. Disabling Oculus plugins (except for input) allows it to be summoned normally. Same th ...
BP - Class default value is temporary reset after parent c++ class compile.
UE - Foundation - Cpp Tools - Hot Reload - Nov 21, 2017class default value after c++ class compile will temporary initialized. It will be restored when opening the project again. ...