Merge pull request #1576 from KieranCoppins/1575-failed-sublevel-loading-fix

Treat failed to load as unloaded sublevels

Author: kring

CHANGES.md

@@ -6,6 +6,10 @@
 
 - Removed support for Unreal Engine 5.2. Unreal Engine 5.3 or later is now required.
 
+##### Fixes :wrench:
+
+- Fixed a bug in `CesiumSubLevelSwitcherComponent` that could prevent all sub-levels from loading if a single sub-level failed to load.
+
 ### v2.11.0 - 2024-12-02
 
 This is the last release of Cesium for Unreal that will support Unreal Engine v5.2. Future versions will require Unreal Engine v5.3+.

Source/CesiumRuntime/Private/CesiumSubLevelSwitcherComponent.cpp

@@ -144,12 +144,12 @@ void UCesiumSubLevelSwitcherComponent::TickComponent(
         case ELevelStreamingState::MakingVisible:
           anyLevelsStillLoaded = true;
           break;
-        case ELevelStreamingState::FailedToLoad:
         case ELevelStreamingState::LoadedNotVisible:
         case ELevelStreamingState::LoadedVisible:
           pSubLevel->UnloadLevelInstance();
           anyLevelsStillLoaded = true;
           break;
+        case ELevelStreamingState::FailedToLoad:
         case ELevelStreamingState::Removed:
         case ELevelStreamingState::Unloaded:
           break;