Unreal Engine Issues

Changing a Niagara System Component's Override Parameter in a parent BP does not change the value in the child BP

Changing a Niagara System Component's Override Parameter in a parent BP does not change the value in the child BP ...

Exporting a spawnable through Python doesn't work

Large Landscapes cause long PIE start time delays

These delays appear with large Landscapes (for example 8029 x 8029) . The delays only start occurring after the level is saved and reopened. After which PIE start times will be 5 to 15 times longer ...

Attached actor in Sequencer does not detach regardless of the detach state settings until Sequencer is restarted

Attached objects in sequencer do not detach with newly specified "When Finished" property until Sequencer is restarted.  Tested in: 4.23.1 CL#9631420  4.25 CL#11062379 ...

No alpha to coverage for ES3.1 and mobile Vulkan

MSAA is not applied to masked textures/materials. Testing blocked in MAIN 4.25 @ CL 11144351 by [Link Removed] ...

UHT not properly handling deprecated UFUNCTION parameters

Compilation will fails with an error on TSubclassOf<UDEPRECATED_SomeData> ...

Navmesh drawing is not visible during Simulate or PIE unless Supported Agents includes the first agent

In Simulate or PIE it is not possible to see any Navmesh Volumes past the 1st in a multi-navmesh setup. Any Nav Volumes after the 1st need to have the 1st one enabled for them to be drawn in the Lev ...

Scene Capture is not capture the planar reflection

https://udn.unrealengine.com/questions/545555/view.html The issue reports as a UDN ticket. Planar reflection is not captured by scene capture.  [Link Removed] commented, I suspect it has to do w ...

BP - Nativizing a UMG widget hierarchy in which a child widget of another widget BP type has the "Is Variable" box unchecked will result in a crash at runtime.

When the "Is Variable" box is unchecked for a BP-typed child widget, a variable will not be created at Blueprint compile time to reference the child widget in the nativized widget BP class. This bre ...

VSCode finds intellisense errors in Project source files: cannot open source file "UBT_COMPILED_PLATFORM/UBT_COMPILED_PLATFORMPlatformCompilerPreSetup.h"

VSCode finds intellisense errors in Project source files: cannot open source file "UBT_COMPILED_PLATFORM/UBT_COMPILED_PLATFORMPlatformCompilerPreSetup.h" Similar to [Link Removed], but that was onl ...