Unreal Engine Issues

MemReport does not seem to respect mesh streaming

The function "FStaticMeshLODResources::GetResourceSizeEx(...)" does not take into account that the buffers might be emptied, due to Mesh Streaming. This causes "obj list" to report sizes larger than ...

[AI] Area Class to Replace does not work on SplineNavModifierComponent

The SplineNavModifierComponent does not have the same behavior as regular nav modifier components where the modifier can specify that it only replaces a given NavArea class. Setting the area class t ...

Inserting before a FSlateImageRun twice will cause crash

A crash can occur when multiple Actors are spawned/destroyed simultaneously with each one loading an asset.

A crash can occur if multiple Actors are spawned/destroyed simultaneously, with each Actor loading an asset when it is spawned. This does not occur 100% of the time, but it does occur quite frequent ...

Negate Blueprint Macro Returning Original Value

The Negate blueprint macros (NegateInt, NegateFloat) are returning the original value. Found in 4.12.5 CL 3039270. Reproduced in 4.13 CL 3106830 and 4.11.2 CL 2946394. ...

Events Still Firing After Stopping Blueprint After Hitting Breakpoint

After hitting a breakpoint and then stopping the execution of a blueprint using the Stop button, the next event is still being fired. Found in 4.13.2, reproduced in 4.12.5 and 4.14 Preview 2. ...

GEditor->OnBeginObjectMovement only fires on Actors

When moving a component of an actor instead of the actor itself, the OnBeginObjectMovement delegate from GEngine is not triggered. It should match the behavior of the actor itself and trigger the de ...

Use Localized Graph Editor Nodes and Pins requires an editor restart to take effect but doesn't prompt for one

Changing the Use Localized Graph Editor Nodes and Pins setting requires a restart to take effect but doesn't prompt you to restart the editor as other settings that require one do. Regression?: No ...

Markup in Tutorial Texts Not Being Displayed Correctly

Text in the tutorials is not being displayed properly. Instead, the XML markup is being shown as displayed in the attached screenshot. This does not occur in 4.12.5, and is a regression. This occ ...

Max Angular Velocity Value Being Reset

The value of Max Angular Velocity on a component is being reset after changing the value and compiling the blueprint. Found in 4.12 binary, reproduced in Main CL 2994701. Could not reproduce in 4. ...