diff --git a/distribution/changelog.txt b/distribution/changelog.txt
index bed78500d3..a2e3d450a4 100644
--- a/distribution/changelog.txt
+++ b/distribution/changelog.txt
@@ -1,5 +1,6 @@
 0.2.5+ (in development)
 ------------------------------------------------------------------------
+- Fix: [#11027] Third color on walls becomes black when saving.
 
 0.2.5 (2020-03-24)
 ------------------------------------------------------------------------
diff --git a/src/openrct2/rct2/S6Exporter.cpp b/src/openrct2/rct2/S6Exporter.cpp
index 6833e754e1..10fa61fbc8 100644
--- a/src/openrct2/rct2/S6Exporter.cpp
+++ b/src/openrct2/rct2/S6Exporter.cpp
@@ -1552,11 +1552,15 @@ void S6Exporter::ExportTileElement(RCT12TileElement* dst, TileElement* src)
             dst2->SetAcrossTrack(src2->IsAcrossTrack());
             dst2->SetAnimationIsBackwards(src2->AnimationIsBackwards());
 
-            auto bannerIndex = src2->GetBannerIndex();
-            if (bannerIndex != BANNER_INDEX_NULL)
-                dst2->SetBannerIndex(bannerIndex);
-            else
-                dst2->SetBannerIndex(RCT12_BANNER_INDEX_NULL);
+            auto entry = src2->GetEntry();
+            if (entry != nullptr && entry->wall.scrolling_mode != SCROLLING_MODE_NONE)
+            {
+                auto bannerIndex = src2->GetBannerIndex();
+                if (bannerIndex != BANNER_INDEX_NULL)
+                    dst2->SetBannerIndex(bannerIndex);
+                else
+                    dst2->SetBannerIndex(RCT12_BANNER_INDEX_NULL);
+            }
 
             break;
         }
@@ -1570,11 +1574,15 @@ void S6Exporter::ExportTileElement(RCT12TileElement* dst, TileElement* src)
             dst2->SetPrimaryColour(src2->GetPrimaryColour());
             dst2->SetSecondaryColour(src2->GetSecondaryColour());
 
-            auto bannerIndex = src2->GetBannerIndex();
-            if (bannerIndex != BANNER_INDEX_NULL)
-                dst2->SetBannerIndex(bannerIndex);
-            else
-                dst2->SetBannerIndex(RCT12_BANNER_INDEX_NULL);
+            auto entry = src2->GetEntry();
+            if (entry != nullptr && entry->large_scenery.scrolling_mode != SCROLLING_MODE_NONE)
+            {
+                auto bannerIndex = src2->GetBannerIndex();
+                if (bannerIndex != BANNER_INDEX_NULL)
+                    dst2->SetBannerIndex(bannerIndex);
+                else
+                    dst2->SetBannerIndex(RCT12_BANNER_INDEX_NULL);
+            }
 
             break;
         }
diff --git a/src/openrct2/rct2/S6Importer.cpp b/src/openrct2/rct2/S6Importer.cpp
index 5a0e02bcd8..1ee6d33c59 100644
--- a/src/openrct2/rct2/S6Importer.cpp
+++ b/src/openrct2/rct2/S6Importer.cpp
@@ -1166,11 +1166,11 @@ public:
                 dst2->SetSecondaryColour(src2->GetSecondaryColour());
                 dst2->SetTertiaryColour(src2->GetTertiaryColour());
                 dst2->SetAnimationFrame(src2->GetAnimationFrame());
-                dst2->SetBannerIndex(src2->GetBannerIndex());
                 dst2->SetAcrossTrack(src2->IsAcrossTrack());
                 dst2->SetAnimationIsBackwards(src2->AnimationIsBackwards());
 
                 // Import banner information
+                dst2->SetBannerIndex(BANNER_INDEX_NULL);
                 auto entry = dst2->GetEntry();
                 if (entry != nullptr && entry->wall.scrolling_mode != SCROLLING_MODE_NONE)
                 {
@@ -1180,10 +1180,7 @@ public:
                         auto srcBanner = &_s6.banners[bannerIndex];
                         auto dstBanner = GetBanner(bannerIndex);
                         ImportBanner(dstBanner, srcBanner);
-                    }
-                    else
-                    {
-                        dst2->SetBannerIndex(BANNER_INDEX_NULL);
+                        dst2->SetBannerIndex(src2->GetBannerIndex());
                     }
                 }
                 break;
@@ -1197,9 +1194,9 @@ public:
                 dst2->SetSequenceIndex(src2->GetSequenceIndex());
                 dst2->SetPrimaryColour(src2->GetPrimaryColour());
                 dst2->SetSecondaryColour(src2->GetSecondaryColour());
-                dst2->SetBannerIndex(src2->GetBannerIndex());
 
                 // Import banner information
+                dst2->SetBannerIndex(BANNER_INDEX_NULL);
                 auto entry = dst2->GetEntry();
                 if (entry != nullptr && entry->large_scenery.scrolling_mode != SCROLLING_MODE_NONE)
                 {
@@ -1209,10 +1206,7 @@ public:
                         auto srcBanner = &_s6.banners[bannerIndex];
                         auto dstBanner = GetBanner(bannerIndex);
                         ImportBanner(dstBanner, srcBanner);
-                    }
-                    else
-                    {
-                        dst2->SetBannerIndex(BANNER_INDEX_NULL);
+                        dst2->SetBannerIndex(src2->GetBannerIndex());
                     }
                 }
                 break;