Unreal Engine Issues
Unreal Engine Issues
Update Mesh Section incorrectly sets vertex colors for a Procedural Mesh
UE - Graphics Tools - Modeling Tools - Jun 21, 2022This is a regression tested in //UE4/Release-4.27 CL#18319896 Update Mesh Section incorrectly sets vertex colors for a Procedural Mesh. The closer a colors R, G, or B value is to 1.0 or 0.0 the mor ...
View Changes: external changes desync state and trigger checks
UE - Editor - Mar 2, 2024External changes to source control are causing state desyncs which get expressed in code as multiple operations on the same items in the same UI visit. This check is in place because when only using ...
Nanite displacement on landscapes not rendering on 5700XT
UE - Graphics Features - Nanite - Mar 27, 2024This only happens on a 5700XT, tested this on the 7900XT and the issue did not occur Initially reported on the Preview 1 forums: https://forums.unrealengine.com/t/unreal-engine-5-4-preview/1763516 ...
Set nodes for Physical Materials are no longer accessible via Blueprints
UE - Gameplay - Blueprint - Nov 19, 2014DESCRIPTION: Set nodes for Physical Material parameters are no longer accessible via Level Blueprint. AH Post: https://answers.unrealengine.com/questions/135031/cant-set-physical-material-properti ...
Add option to instance the subsequences from the master sequence
UE - Anim - Sequencer - Mar 24, 2017https://udn.unrealengine.com/questions/353493/creating-subsequence-from-the-master-sequence-sett.html Add option to instance the subsequences from the master sequence. For example, if you want to c ...
Crash opening Child/Grandchild Blueprint after updating to 4.18
UE - Gameplay - Blueprint - Nov 29, 2017From this UDN: https://answers.unrealengine.com/questions/718928/4180-editor-crash-while-opening-child-blueprint.html Crash occurs when opening child (or in the repro case, grandchild) blueprints a ...
Blueprint Functions with a Parameter Named "Category" Will Change the Functions Category Back to Default
UE - Gameplay - Nov 19, 2018When creating a Blueprint Function under a non-default category, if you name one of its parameters "Category" the function will be moved back to the default category. This is working as expected in ...
Precaching global shaders with r.PSOPrecache.GlobalShaders = 2 crashes on startup
UE - Rendering - Architecture - RHI - Feb 19, 2026A licensee has reported that they are trying to run a cooked project with r.PSOPrecache.GlobalShaders=2 and running into a crash. They believe the problem is in PrecacheComputePipelineStatesForGlob ...
UDN: Framework Networking: Listen server needs smoother interpolation of remote clients
UE - Gameplay - Jan 31, 2014Listen server needs smoother interpolation of remote clients. Update throttling and/or low framerates on clients results in poor experience on the listen server. Might be optional for dedicated serv ...
Setting Physics Blend Weight to anything between 0 and 1 causes erratic behavior
UE - Simulation - Physics - Jul 27, 2015If the user simulates all bodies, and then sets the physics blend weight to a decimal value between 0 and 1, the skeletal meshes will spin out of control. This doesn't happen if the physics blend w ...