diff --git a/core/src/com/unciv/logic/map/mapgenerator/MapGenerator.kt b/core/src/com/unciv/logic/map/mapgenerator/MapGenerator.kt
index e0b13d19f5..d3a4f1b8a1 100644
--- a/core/src/com/unciv/logic/map/mapgenerator/MapGenerator.kt
+++ b/core/src/com/unciv/logic/map/mapgenerator/MapGenerator.kt
@@ -788,10 +788,12 @@ class MapGenerator(val ruleset: Ruleset) {
         // Spawn ice on center tile
         if (bestArcticTileName == iceTerrainName) {
             tile.baseTerrain = waterTerrainName
-            tile.setTerrainFeatures(listOf(iceTerrainName))
+            tile.removeTerrainFeatures()
+            tile.addTerrainFeature(iceTerrainName)
         } else if (iceTerrainName != null && bestArcticTileName != mountainTerrainName) {
             tile.baseTerrain = bestArcticTileName // snow (or a mod's equivalent)
-            tile.setTerrainFeatures(listOf(iceTerrainName))
+            tile.removeTerrainFeatures()
+            tile.addTerrainFeature(iceTerrainName)
         } else {
             tile.baseTerrain = bestArcticTileName // mountain (or a mod's equivalent)
             tile.removeTerrainFeatures()
@@ -801,10 +803,12 @@ class MapGenerator(val ruleset: Ruleset) {
         for (neighbor in tile.neighbors) {
             if (bestArcticTileName == iceTerrainName) {
                 neighbor.baseTerrain = waterTerrainName
-                neighbor.setTerrainFeatures(listOf(iceTerrainName))
+                neighbor.removeTerrainFeatures()
+                neighbor.addTerrainFeature(iceTerrainName)
             } else if (iceTerrainName != null && bestArcticTileName != mountainTerrainName) {
                 neighbor.baseTerrain = bestArcticTileName // snow (or a mod's equivalent)
-                neighbor.setTerrainFeatures(listOf(iceTerrainName))
+                neighbor.removeTerrainFeatures()
+                neighbor.addTerrainFeature(iceTerrainName)
             } else {
                 neighbor.baseTerrain = bestArcticTileName // mountain (or a mod's equivalent)
                 neighbor.removeTerrainFeatures()
@@ -816,10 +820,12 @@ class MapGenerator(val ruleset: Ruleset) {
                     // Do nothing most of the time at random.
                 } else if (bestArcticTileName == iceTerrainName) {
                     neighbor2.baseTerrain = waterTerrainName
-                    neighbor2.setTerrainFeatures(listOf(iceTerrainName))
+                    neighbor2.removeTerrainFeatures()
+                    neighbor2.addTerrainFeature(iceTerrainName)
                 } else if (iceTerrainName != null && bestArcticTileName != mountainTerrainName) {
                     neighbor2.baseTerrain = bestArcticTileName // snow (or a mod's equivalent)
-                    neighbor2.setTerrainFeatures(listOf(iceTerrainName))
+                    neighbor2.removeTerrainFeatures()
+                    neighbor2.addTerrainFeature(iceTerrainName)
                 } else {
                     neighbor2.baseTerrain = bestArcticTileName // mountain (or a mod's equivalent)
                     neighbor2.removeTerrainFeatures()
@@ -838,10 +844,12 @@ class MapGenerator(val ruleset: Ruleset) {
         // Spawn arctic tiles on edge tile
         if (arcticTileName == iceTerrainName) {
             tile.baseTerrain = waterTerrainName
-            tile.setTerrainFeatures(listOf(iceTerrainName))
+            tile.removeTerrainFeatures()
+            tile.addTerrainFeature(iceTerrainName)
         } else if (iceTerrainName != null && arcticTileName != mountainTerrainName) {
             tile.baseTerrain = arcticTileName // snow (or a mod's equivalent)
-            tile.setTerrainFeatures(listOf(iceTerrainName))
+            tile.removeTerrainFeatures()
+            tile.addTerrainFeature(iceTerrainName)
         } else {
             tile.baseTerrain = arcticTileName // mountain (or a mod's equivalent)
             tile.removeTerrainFeatures()
@@ -856,10 +864,12 @@ class MapGenerator(val ruleset: Ruleset) {
                 // Do nothing most of the time at random.
             } else if (arcticTileName == iceTerrainName) {
                 neighbor.baseTerrain = waterTerrainName
-                neighbor.setTerrainFeatures(listOf(iceTerrainName))
+                neighbor.removeTerrainFeatures()
+                neighbor.addTerrainFeature(iceTerrainName)
             } else if (iceTerrainName != null && arcticTileName != mountainTerrainName) {
                 neighbor.baseTerrain = arcticTileName // snow (or a mod's equivalent)
-                neighbor.setTerrainFeatures(listOf(iceTerrainName))
+                neighbor.removeTerrainFeatures()
+                neighbor.addTerrainFeature(iceTerrainName)
             } else {
                 neighbor.baseTerrain = arcticTileName // mountain (or a mod's equivalent)
                 neighbor.removeTerrainFeatures()