diff --git a/features/testbot/distance_matrix.feature b/features/testbot/distance_matrix.feature
index 83d32d283..221380b65 100644
--- a/features/testbot/distance_matrix.feature
+++ b/features/testbot/distance_matrix.feature
@@ -666,4 +666,29 @@ Feature: Basic Distance Matrix
             | a | 0      | 300.2 | 900.7 | 1200.9 |
             | b | 300.2  | 0     | 600.5 | 900.7  |
             | f | 900.7  | 600.5 | 0     | 302.2  |
-            | 1 | 1200.9 | 900.7 | 300.2 | 0      |
\ No newline at end of file
+            | 1 | 1200.9 | 900.7 | 300.2 | 0      |
+
+    Scenario: Testbot - Filling in noroutes with estimates - use snapped coordinate - asymetric
+        Given a grid size of 300 meters
+        Given the extract extra arguments "--small-component-size 4"
+        Given the query options
+            | fallback_speed | 5 |
+            | fallback_coordinate | snapped |
+        Given the node map
+            """
+            a b   f h 1
+            d e   g i
+            """
+
+        And the ways
+            | nodes |
+            | abeda |
+            | fhigf |
+
+        When I request a travel distance matrix I should get
+            |   | a      |
+            | a | 0      |
+            | b | 300.2  |
+            | f | 900.7  |
+            | 1 | 1200.9 |
+            
\ No newline at end of file
diff --git a/src/engine/plugins/table.cpp b/src/engine/plugins/table.cpp
index d1d7786ee..a9a5f1db7 100644
--- a/src/engine/plugins/table.cpp
+++ b/src/engine/plugins/table.cpp
@@ -103,6 +103,7 @@ Status TablePlugin::HandleRequest(const RoutingAlgorithmsInterface &algorithms,
             for (std::size_t column = 0; column < num_destinations; column++)
             {
                 const auto &table_index = row * num_sources + column;
+                BOOST_ASSERT(table_index < result_tables_pair.first.size());
                 if (result_tables_pair.first[table_index] == MAXIMAL_EDGE_DURATION)
                 {
                     const auto &source =