Fixed rare crash in LogError(..) caused by invalid flow node self or owner (#323)

gregorhcs · web-flow · commit 409b1fcaae81 · 2026-01-18T16:16:15.000+01:00
diff --git a/Source/Flow/Private/Nodes/FlowNodeBase.cpp b/Source/Flow/Private/Nodes/FlowNodeBase.cpp
@@ -834,7 +834,7 @@ void UFlowNodeBase::LogError(FString Message, const EFlowOnScreenMessageType OnS
 					StatsSubsystem->AddDisplayDelegate([WeakThis = TWeakObjectPtr<const UFlowNodeBase>(this), Message](FText& OutText, FLinearColor& OutColor)
 					{
 						const UFlowNodeBase* ThisPtr = WeakThis.Get();
-						if (ThisPtr && ThisPtr->GetFlowNodeSelfOrOwner()->GetActivationState() != EFlowNodeState::NeverActivated)
+						if (ThisPtr && ThisPtr->GetFlowNodeSelfOrOwner() && ThisPtr->GetFlowNodeSelfOrOwner()->GetActivationState() != EFlowNodeState::NeverActivated)
 						{
 							OutText = FText::FromString(Message);
 							OutColor = FLinearColor::Red;

Original file line number	Diff line number	Diff line change
`@@ -834,7 +834,7 @@ void UFlowNodeBase::LogError(FString Message, const EFlowOnScreenMessageType OnS`
`834`	`834`	`StatsSubsystem->AddDisplayDelegate([WeakThis = TWeakObjectPtr<const UFlowNodeBase>(this), Message](FText& OutText, FLinearColor& OutColor)`
`835`	`835`	`{`
`836`	`836`	`const UFlowNodeBase* ThisPtr = WeakThis.Get();`
`837`		`- if (ThisPtr && ThisPtr->GetFlowNodeSelfOrOwner()->GetActivationState() != EFlowNodeState::NeverActivated)`
	`837`	`+ if (ThisPtr && ThisPtr->GetFlowNodeSelfOrOwner() && ThisPtr->GetFlowNodeSelfOrOwner()->GetActivationState() != EFlowNodeState::NeverActivated)`
`838`	`838`	`{`
`839`	`839`	`OutText = FText::FromString(Message);`
`840`	`840`	`OutColor = FLinearColor::Red;`