Making a navigation system 'strictly static' affects all subsequently created navigation system instances

UE - AI - Mar 26, 2020

The problem is a result of two things: UNavigationSystemV1::bStaticRuntimeNavigation being staticUNavigationSystemModuleConfig::UpdateWithNavSysCDO copying the data from nav sys CDO, including bStat ...

Desynchronised playback of firstime played SoundWaves with active AudioStreamCaching

UE - Audio - Mar 25, 2020

The SoundWave in the Content folder of the attached Project has been exported from Nuendo @ 120BPM 4/4, with a duration of exactly 1 Bar. The BP_Audio Actor uses the TimeSynthComponent to provide sa ...

Calling Finish Recording Output causes a crash in PIE

UE - Audio - Mar 23, 2020

The Finish Recording Output node from the Audio Mixer BP Library crashes due to an invalid Path input. This is a regression from 4.23.1 (CL-9631420).  This was reported and tested in 4.24.3 (CL-115 ...

Ribbons Don't Follow Their Source Particles When Scaling

UE - Niagara - Mar 23, 2020

When Ribbon Data in a particles system that is following is scaled in an instance the ribbons scale appropriately, but they don't follow updated location of their source particles. See the attached ...

Compiling blueprints with a reroute node attached to a class variable to a "Spawn for gameplay task" causes the pin to "instigator" to disconnect

UE - Gameplay - Mar 20, 2020

Creating a reroute node between a class variable and a "Spawn actor for gameplay task's" class pin will cause the variable attached to the instigator pin to disconnect. ...

SampleCurve And SampleColorCurve Nodes Missing In Niagara Module Scripts

UE - Niagara - Mar 19, 2020

In a Niagara Module Script the "Sample Curve" and "Sample Color Curve" nodes cannot be found. They were findable in 4.24 prior to 4.24.3. This seems related to this ticket. Found in 4.24.3 CL#11590 ...

Snap to grid shortcut does not work when the coordinate's decimal value is set to a low value

Tools - Mar 19, 2020

Snap to grid shortcut does not work if the decimal value of the (X or Y or Z) coordinate is set too low.  Note: Adjusting the Y or Z value after setting the X value to -64.000038 will allow the ...

Property Redirectors do not update the DisplayName of delegate nodes

UE - Gameplay - Blueprint - Mar 19, 2020

This is happening because the property  FText DelegatePropertyDisplayName; on UK2Node_ComponentBoundEvent is serialized, so it does not get properly updated.  ...

Bound Variables In UMG Are Deleted As Unused If Not Used In The Graph Window

UE - Editor - UI Systems - Mar 18, 2020

If a variable is bound in the Design Window of a User Widget asset it will be deleted if you use the menu option "Delete all unused variables". Found in 4.24.3 CL#11590370 Reproduced in 4.23.1 CL#9 ...

Warp Utils plugin crashes on Editor restart

UE - Virtual Production - Mar 17, 2020

Enabling the Warp Utils plugin and restarting the Editor causes it to crash. This is a regression from 4.24.3 (CL-11590370). This was reported and tested in 4.25 Preview 2 (CL-12055273) and reprodu ...