server/AyaNova/util/Seeder.cs

@@ -3078,7 +3078,8 @@ namespace AyaNova.Util
         {
             var l = CustomerUnits.Where(x => x.Key == customerId).FirstOrDefault();//Fake.Random.Long(1, TotalSeededUnits);
             var numUnits = l.Value.Count();
-            var i = Fake.Random.Int(1, numUnits);
+            //because faker values are INCLUSIVE and this is going to be used as an index on an array need to -1 each end of the range
+            var i = Fake.Random.Int(0, numUnits-1);
             return l.Value[i];
         }