From f9ad0a434d5ea881c207573c7cb99acd01df2499 Mon Sep 17 00:00:00 2001
From: Alex Shvartzkop <dudesuchamazing@gmail.com>
Date: Mon, 4 Mar 2024 15:00:21 +0300
Subject: [PATCH] Fix assert in BOARD_ADAPTER::createLayers.

---
 3d-viewer/3d_canvas/create_layer_items.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/3d-viewer/3d_canvas/create_layer_items.cpp b/3d-viewer/3d_canvas/create_layer_items.cpp
index 7bcedf2cf1..8dab395953 100644
--- a/3d-viewer/3d_canvas/create_layer_items.cpp
+++ b/3d-viewer/3d_canvas/create_layer_items.cpp
@@ -1151,6 +1151,7 @@ void BOARD_ADAPTER::createLayers( REPORTER* aStatusReporter )
                                 if( layerPoly != m_layers_poly.end() )
                                 {
                                     // This will make a union of all added contours
+                                    layerPoly->second->ClearArcs();
                                     layerPoly->second->Simplify( SHAPE_POLY_SET::PM_FAST );
                                 }
                             }