Fixed an issue with instance counters that lead to some lines not being...

Fixed an issue with instance counters that lead to some lines not being rendered. How this didn't just crash completely is beyond me.

Source/InstancedMeshLineRendering/Private/GPUInstancedLineComponent.cpp

@@ -543,6 +543,8 @@ void UGPUInstancedLineComponent::AddBulkInternal(int32 NumberOfLines, int32 Numb
 	DummyTransforms.SetNum(NumberOfLines * NumberOfSegmentsPerLine);
 	AddInstances(DummyTransforms, false);
 
+	int32 InstanceCounter = 0;
+
 	for (int32 LineIndex = 0; LineIndex < NumberOfLines; ++LineIndex)
 	{
 		const FLinearColor Color = UniformColor ? Colors[0] : Colors[LineIndex];
@@ -554,11 +556,10 @@ void UGPUInstancedLineComponent::AddBulkInternal(int32 NumberOfLines, int32 Numb
 		for (int32 PointIndex = 0; PointIndex < NumberOfSegmentsPerLine; ++PointIndex)
 		{
 			//const int32 InstanceId = AddNewSegmentInstance(Color, Width, CurrentTextureIndex);			
-			const int32 InstanceId = CurrentTextureIndex;
-			InitializeCreatedSegmentInstance(InstanceId, Color, Width, CurrentTextureIndex);
-			NewLineArray.IndexArray.Add({ InstanceId, LineIndex * (NumberOfSegmentsPerLine + 1) + PointIndex });
+			InitializeCreatedSegmentInstance(InstanceCounter, Color, Width, CurrentTextureIndex);
+			NewLineArray.IndexArray.Add({ InstanceCounter, LineIndex * (NumberOfSegmentsPerLine + 1) + PointIndex });
 			CurrentTextureIndex++;
-
+			InstanceCounter++;
 			MoveTextureMarker();
 		}
 		NewLineArray.IndexArray.Add({ -1, LineIndex * (NumberOfSegmentsPerLine + 1) + NumberOfSegmentsPerLine });