f

adapters/fabric/src/main/java/art/arcane/iris/fabric/FabricModdedLoader.java

@@ -53,6 +53,10 @@ public final class FabricModdedLoader implements ModdedLoader {
         return instance instanceof MinecraftServer server ? server : null;
     }
 
+    @Override
+    public void invalidateLevelCache(MinecraftServer server) {
+    }
+
     @Override
     public boolean clientEnvironment() {
         return FabricLoader.getInstance().getEnvironmentType() == EnvType.CLIENT;