ULineBatchComponent::DrawLine is flickering with UE5.1.1

ULineBatchComponent :
TranslucencySortPriority = 99999;
TArray lines;
lines.Add(FBatchedLine(LineStart, LineEnd, Color, 0, 50, SDPG_Foreground));
DrawLines(lines);

Material settings for the StaticMesh:

Why do line segments disappear?When the mouse moves, it will appear?
Is this related to transparent sorting? But TranslucencySortPriority = 99999;
How to solve this problem?
Thanks!!