Unreal Engine Issues

Converting a modular character to a static mesh can result in a crash or in an asset with corrupted data

Fixup Redirectors doesn't work in the editor

Fixup Redirectors doesn't work in the editor when showing redirectors using the filter and then choosing Fixup. The maps that reference the redirectors aren't being checked out and fixed. I'm just g ...

Blackboard decorator node does not abort lower-priority nodes

When a branch of a selector is deactivated, all auxiliary nodes and observer delegates are removed. If the branch is reactivated soon and the CurrentActiveNode remains unchanged, the behavior tree l ...

After calling Seamless Travel, actors in the level will not be in their original positions

After calling Seamless Travel, actors in the level will not be in their original positions. The example provided by the licensee had a different result: the actors, despite having Start Awake disabl ...

Unreal Header Tool can sometimes fail if an Engine plugin is Enabled By Default and has the "Program" Module Type set

An Engine plugin with the Program module type and EnabledByDefault set to true can cause the Engine to fail to build successfully due to UHT failing. I was only able to reproduce this behavior using ...

For a TMap with C++ enum keys, deleting and re-adding a map entry in the Editor can corrupt the map data.

When adding an entry to a TMap using UE's property editors, in most cases the new entry comes with a default-initialized key (if such key already exists, the insertion fails). The case of a UENUM de ...

Crash with for loop and TArray in constructor to generate multiple StaticMeshComponents

Using a TArray to store multiple components being setup inside a for loop of a constructor will crash on project open. Crash Reporter: [Link Removed] ...

Make Bitmask node returns incorrect value when using custom Enum

When a custom enum is used as the Bitmask Enum of a Make Bitmask node, the value returned does not match the expected value ...

Mover Plugin: UNavMoverComponent::GetFeetLocationBased() returns incorrect FBasedPosition when using WalkingMode over a Movable floor, making UPathFollowingComponent erroneously detect a blocked move

Function UNavMoverComponent::GetFeetLocationBased() on file "NavMoverComponent.cpp" returns an FBasedPosition built from an FRelativeBaseInfo. The "MovementBaseInfo" is read from key "CommonBlackboa ...

UE5.6+ - Mutable - IDPrefix crash when combining Child Objects, Add to Mesh Component and Extend Mesh Section.

So the issue seems to be a combination of Add To Mesh Component and Extend Mesh Section. I've tried this in Epic Launcher 5.6, 5.6 in-house modified engine as well as ue5-main 5.7 from git (editor ...