Unreal Engine Issues

[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 ...

[CrashReport] UEdGraphSchema_K2::PinHasSplittableStructType

This crash is affecting a few users in 4.17. ...

Allow for Chords in the EnhancedInputUserSettings

Error for having an extra semicolon before a UPROPERTY declaration is not thrown inside of a USTRUCT

Having an extra semicolon on the line before declaring a UPROPERTY will cause UHT to miss parsing the following UPROPERTY. This is expected, but an error is usually given when this is the case. This ...

Cannot add a non-static custom thunk to a code class

In 4.19, it is no longer possible to create a non-static custom thunk in a class. This was possible in 4.18.3. REGRESSION: Yes. ...

Slate draws the elements of an array even when the array is collapsed

The elements of an array that are shown in the details panel (below the world outliner) are drawn even when the array is collapsed. This can cause a performance drop when using an array that has a l ...

[AI] StateTree fails to compile after copy/pasting a state with a task that binds to required event on the state's enter conditions

StateTree appears to keep an incorrect reference to the event from the source tree rather than re-establishing the property binding to the new tree's event. This happens when copy/paste of the state ...