[AI] Stack overflow in canRemoveVertex of DetourTileCacheBuilder

UE - AI - Navigation - Sep 28, 2023

User reports of stack overflow happening in canRemoveVertex in DetourTileCacheBuilder.cpp if a poly has more than 16 vertices. The array for edges is a fixed array and is written to without checking ...

Gameplay Debugger does not currently support basic input chords

UE - Gameplay - Input - May 21, 2024

A note from the user, seems like they have a fix for this already I've changed the type of UGameplayDebuggerConfig::ActivationKey to FInputChord and with ony small changes to surrounding code it ...

Blend Stack node doesn't have a valid FDeltaTimeRecord

UE - Anim - Runtime - Apr 19, 2024

The blend stack node doesn't generate any values for its DeltaTimeRecord.  This can be tested with the fix for [Link Removed] ...

Assert / crash resolving TSoftObjectPtr when exiting PIE

UE - World Creation - Procedural Tools - PCG Core - Dec 17, 2024

The main landscape actor's outer level's WorldSettings gets nullified by GC on PIE end, which leads to this problem. For some reason, this only seems to occur with the attached custom game mode : it ...

[Mootools Bug] SKP import - Mirrored groups will display with the default material in Keep Hierarchy imports

TM - Interoperability - Apr 10, 2025

Reported in SF [Link Removed] SketchUp models containing grouped elements that are mirrored will incorrectly display these elements with the default material when imported using the Keep Hierarchy ...

Crash when creating StaticMesh repeatedly

Tools - Nov 21, 2014

UE4Editor crashes when creating static meshes. Event at startup time while it tries to create default object it crash sometimes. ...

NavMesh does not update properly when "Can Ever Affect Navigation" is toggled (For Static Meshes)

UE - AI - Sep 15, 2015

This issue is related to [Link Removed] (which was fixed). However if the user creates a new actor and then adds a static mesh they can end up with permanent holes in their nav mesh. If the user tog ...

Vehicle physics are resolving erratically and causing random jitter/flips in the Advanced Vehicle Template

UE - Simulation - Physics - Nov 16, 2016

When a vehicle is on an uneven surface, the physics that are handling where the wheels should be placed is resolving sporadically, causing noticeable jitters and sometimes flipping. Regression?: Ye ...

Event does not fire at end of playback range

UE - Anim - Sequencer - Aug 29, 2016

Event does not fire at end of playback range. This does work with Forced Fixed Frame Interval Playback so wonder if this is invalid? I have some test content set up in //UE4/Main QAGame QA-Promoti ...

Not including StarterContent/Templates prevents engine .cpp files from appearing in project VS

UE - Foundation - Core - May 26, 2016

If either/both of the "Starter Content" or "Template and Feature Packs" checkbox's are not selected when installing/updating 4.12 from the Launcher, the engine .cpp files will not show up in Visual ...