Unreal Engine Issues

An array of structures variable has its values reset when the structure is modified without recompiling the blueprint

An array of a structure that has been modified without the array's blueprint being complied results in the values of the array element being reset. Compiling each blueprint that has the array of str ...

Crash promoting a float pin from a split vector in Anim Blueprint

REGRESSION Yes, does not occur in 4.16. Crash occurs when the user splits a vector pin on an anim node and then tries to promote one of the float nodes to variable. I could not reproduce this issu ...

HLSLCC crashed on parsing UAV related instruction

1.glsl_type with image was not fully inited with HlslName field set, causing the crash 2.seems many types of op are not support by current hlslcc, cause error msg. e.g. RWTexture2D.Load[Image Remo ...

Crash when deleting the Add Component By Class node after changing the Relative Transform of the component

When adding the Add Component By Class node, choosing a class that has a Relative Transform pin, changing the transform, and deleting the node the editor crashes. I tested this with the Skeletal Mes ...

Properties with hierarchical category are not displayed in the data table editor

Split Pins in the AnimGraph become disconnected after Editor Restart

Split Pins in the AnimGraph of an Anim Blueprint become disconnected after Editor Restart Regression: YES. This does not occur in 4.12.5 CL:3039270 I also tested this in latest 4.13 Releases CL:3 ...

[interchange] Override Pipelines array do not accept asset inheriting from "Interchange Blueprint Pipeline Base"

UDataTableFunctionLibrary::AddDataTableRow() fails for blueprint-defined row structure types

The editor-scripting blueprint node "Add Data Table Row" fails when the Data Table uses a Row Structure that was defined in blueprint. Internally, it checks if the passed-in UScriptStruct is derived ...

Undo Crash with Reroute node into Class pin of SpawnActorFromClass

Crash on undo with SpawnActor node that uses a reroute pin in class wire. "It looks like the variable promotion marks the blueprint as structurally modified, which triggers a skeleton compile, wh ...

FFieldPath resolution doesn't handle redirection

A licensee has found that redirectors don't apply to FFieldPath. We should integrate it with the following changes:It needs better error handling (looks like it could infinitely recurse),The change ...