Unreal Engine Issues
Unreal Engine Issues
Sequence director fires events multiple times if multiple levels are streaming.
UE - Anim - Sequencer - Nov 7, 2018The new event track in level sequences fires the number of times that there are levels streaming. ...
Crash when creating StaticMesh repeatedly
Tools - Nov 21, 2014UE4Editor crashes when creating static meshes. Event at startup time while it tries to create default object it crash sometimes. ...
Misspelling in Editor Preferences: Experimental
Tools - Sep 16, 2015UE4.9.1 under Editor Preference3s ->Experimental -> Cooking it says "Iterative cooking for builds launched [form] the editor." Correction: [from] ...
sg.ResolutionQuality command doesn't work
UE - Graphics Features - Jan 9, 2015Using the sg.ResolutionQuality command in code or the console has no effect in 4.6.1 or 4.7. ...
Crash clicking on "Recent Levels" or "Package Project" in File menu
UE - Editor - UI Systems - Slate - Jan 22, 2016I tried to debug. In:for (int32 StackIndex = Stack.Num() - 1; StackIndex >= FirstStackIndexToRemove; --StackIndex) { Stack[StackIndex]->Dismiss(); // <-- here } It crashes because Stack is em ...
Crash when Changing the Preview render levels (to ES3)
Tools - Feb 8, 2018If the Preview rendering level is changed to Android ES3.1 Preview during PIE, the editor will crash. ...
Collision for hidden mesh is not displayed in PIE using Showflag.collisionpawn
OLD - Anim - Oct 23, 2017When playing in viewport, the user is not able to see the collision of a mesh marks as hidden in game if they run the "Showflag.collisionpawn 1" console command. ...
Soft angular constraints solve velocity like hard constraints
UE - Simulation - Core - Jul 17, 2025Soft angular constraints are solving velocity like hard constraints. Instead of swinging back and forth, the affected body just snaps to 45 degrees. Check the steps to reproduce for more details. Th ...
Runtime Virtual Texture samples at low precision for very large volumes
UE - Graphics Features - May 31, 2022When using a runtime virtual texture with a resolution of greater than 2^24 we can start to see a lack of precision in sampling when the sampling UVs get closer to 1. To see this we need to be usin ...
Shadow Flickering with Lighting Channels
UE - Graphics Features - Shadows - Oct 27, 2023It looks like static meshes can invalidate large numbers of VSM pages when the geometry and the light are not on light channel 0. ...