Unreal Engine Issues
Unreal Engine Issues
Searching Global Illumination inside the details section of a post process volume does not return any results.
Tools - Nov 20, 2019Searching "Global" in the details panel of a post process volume does not provide Global Illumination as a result, but searching "GI" does. Tested In: 4.22.3 CL#7053642, 4.24 P3 CL#10283392 , 4.25 ...
Show collision command turns on lights that have 'Visibility' set to false
UE - Graphics Features - Dec 2, 2019Running the console command "Show Collision" when lights are placed in the scene with "Visibility" off results in the lights turning back on. Tested in: 4.22.3 CL#7053642 , 4.24.P4 CL#10387632, 4 ...
AudioMixer has private include in public header
UE - Audio - Dec 4, 2019It is possible to receive a compilation error when including a public header (AudioMixerDevice.h) because it includes a private header (AudioMixerSourceManager.h) Tested In : 4.22.3 CL#7053642 ...
[Audio][Niagara] - Audio Spectrum only reacts to Channel 0, despite setting to another channel
UE - Audio - Submixes - Jun 6, 2023While doing some extra testing of the Submix Analyser fixes, I noticed there is a setting to set the channel of the submix to give the analyser. It always works for channel 0, but changing it to any ...
Non-edit layers landscape don't work adequately with Nanite landscape while painting
UE - Graphics Tools - Terrain - Landscape - Oct 24, 2023Result : while displaying the Nanite version of the landscape, the paint layers behave erratically (see video : [Link Removed]) If rebuilding the Nanite data, the bug gets fixed until the user sta ...
PhysicsControl-enabled controls occasionally teleport to origin
UE - Runtime - Animation - Apr 22, 2024Occasionally, PhysicsControl controls will teleport to the world origin. This is sporadic and generally fixes itself either with a restart. In the licensee's case, the controls were also animation d ...
Logic error in TRange::Difference causes crash when you Trim and Preserve Left/Right and unbounded Attach section in the sequencer
zComponent - Archive - Aug 1, 2024TRange::Difference function does not handle bounds correctly, causes crash in the sequencer when "Trim And Preserve Left/Right" is used in the user's example project. User provided a potential fix: ...
bIncludeComponentLocationIntoBounds breaks bounds calculations
UE - Runtime - Animation - Aug 13, 2025Bounds generation when bIncludeComponentLocationIntoBounds is active is broken. Both the calculation of the local bounds and the world bounds are incorrect (see screenshot). When that flag is acti ...
Physics Mover: AI movement and collisions can cause sharp increase in velocity
UE - Gameplay - Player Movement - Mover - Aug 19, 2025A pawn using the physics mover and using AI movement can sometimes gain an ton of velocity quickly upon colliding with another physics object. It seems to fix it self and revert back to it's origina ...
Setting the name of a State or Conduit node to an extremely long string causes a crash
OLD - Anim - Mar 22, 2018Setting the name of a State or Conduit node to an extremely long string causes a crash This issue is not a regression. ...