diff --git a/distribution/changelog.txt b/distribution/changelog.txt
index 60d7c2cb33..91d4f40fae 100644
--- a/distribution/changelog.txt
+++ b/distribution/changelog.txt
@@ -33,6 +33,7 @@
 - Fix: [#10752] Mute button state not correctly set at startup.
 - Fix: [#10822] Can place too many peep spawns.
 - Fix: [#10898] Banner text has an offset in tile inspector window.
+- Fix: [#10904] RCT1/LL-scenarios with red water won't open.
 - Improved: [#682] The staff patrol area is now drawn on the water, instead of on the surface under water.
 - Improved: [#10858] Added horizontal grid lines to finance charts.
 - Removed: [#6898] LOADMM and LOADRCT1 title sequence commands (use LOADSC instead).
diff --git a/src/openrct2/rct1/S4Importer.cpp b/src/openrct2/rct1/S4Importer.cpp
index 1713a7a454..37c82e0e70 100644
--- a/src/openrct2/rct1/S4Importer.cpp
+++ b/src/openrct2/rct1/S4Importer.cpp
@@ -171,6 +171,7 @@ public:
         _s4 = *ReadAndDecodeS4(stream, isScenario);
         _s4Path = path;
         _isScenario = isScenario;
+        _gameVersion = sawyercoding_detect_rct1_version(_s4.game_version) & FILE_VERSION_MASK;
 
         // Only determine what objects we required to import this saved game
         InitialiseEntryMaps();
@@ -321,11 +322,9 @@ private:
 
     void Initialise()
     {
-        _gameVersion = sawyercoding_detect_rct1_version(_s4.game_version) & FILE_VERSION_MASK;
         // Avoid reusing the value used for last import
         _parkValueConversionFactor = 0;
 
-        InitialiseEntryMaps();
         uint16_t mapSize = _s4.map_size == 0 ? 128 : _s4.map_size;
 
         String::Set(gScenarioFileName, sizeof(gScenarioFileName), GetRCT1ScenarioName().c_str());