Unreal Engine Issues
Unreal Engine Issues
Directory placeholders can get added to the external actor packages.
zComponent - Archive - Aug 13, 2025We should not create placeholders when using WP or OFPA. ...
Vector VM - Crash / memory stomp when using > 255 external function calls
UE - Rendering - Architecture - Niagara - Aug 12, 2025The Vector VM has only every supported a byte's worth of external function calls, when we blew the limit it would index into the incorrect VM call. The new VM will also overwrite memory when exceed ...
Large RAM usage increase when loading some legacy scenes in 2025.2
TM - Core - Aug 12, 2025Steps to reproduce:Open TM 2025.1Open the Salt Flats Note down the RAM usageSave the sceneOpen the same scene with the beta 3Note down the RAM usage. Compare results Expected results: The RAM Usag ...
Visibility doesn't get effected by hierarcy levels
zComponent - Archive - Aug 11, 2025We use the hierarchy bias to override actions within subsequences. We can do that for transforms and control rigs, but the visibility track doesn't seem to obey the same rules. Attached is a video o ...
FNiagaraStackGraphUtilities::FindScriptModulesInStack() parameter "OutFunctionCalls" should be a reference
UE - Rendering - Architecture - Niagara - Aug 11, 2025On file [Engine\Plugins\FX\Niagara\Source\NiagaraEditor\Public\ViewModels\Stack\NiagaraStackGraphUtilities.h], function FNiagaraStackGraphUtilities::FindScriptModulesInStack() receives a parameter " ...
Incorrect resolution used because SetProcessDpiAware() is not called when bAllowHighDPIInGameMode=False
UE - Rendering - Architecture - Aug 8, 2025The incorrect resolution is used on computers with 4k monitors that use DPI scaling (default 150%) because the default for UE projects is bAllowHighDPIInGameMode=False which results in SetProcessDp ...
Rewind debugger would crash when recording a character using Pose search
UE - MVF Character - Animation - Aug 8, 2025Our character is using the Pose search setup from GameAnimation content example. The architecture of the system is most the same with some new function that account for some input difference and sp ...
Using ForceCustom Mode causes TPose for single frame in Level Sequencer
zComponent - Archive - Aug 8, 2025We are seeing TPose issues when swapping between EDL shots on skeletal mesh actors. We have spawned skeletal mesh actors added to a Level sequence that are set to use an animation blue prints which ...
Materials are not updated correctly in SketchUp files imported with Datasmith.
TM - Interoperability - Aug 6, 2025This error could be reproduced when doing a direct link like you can see into the attached video.[Link Removed] [Image Removed] ...
[AI] Changing NavMesh Resolution in config file does not update the quantFactor of existing navmesh
UE - Runtime - Character - Aug 6, 2025When we changed the resolution in the config, if you open a map and then look at the navmesh, the resolution it shows is the updated one from the config (assuming you haven't overridden anything) ...