# Preview release available for Unreal Engine 5.5 **URL:** \ **Category:** Cesium for Unreal\ **Tags:** announcement\ **Created:** [November 13, 2024, 9:31am UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544 "2024-11-13T09:31:08Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Kevin\_Ring](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/kevin_ring/32/2003_2.png) [@Kevin\_Ring](https://community.cesium.com/u/Kevin_Ring)\ **Post date:** [November 13, 2024, 9:31am UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544/1 "2024-11-13T09:31:08Z")
Hi everyone! With Unreal Engine 5.5 just released, we’ve moved quickly to make a build of Cesium for Unreal available for it. You can find the build here: > **[Release Preview Release: Cesium for Unreal v2.10.0 for Unreal Engine 5.5 ·...](https://github.com/CesiumGS/cesium-unreal/releases/tag/v2.10.0-ue55)** > > This is the first release of Cesium for Unreal for Unreal Engine 5.5. We tried to get this out as quickly as possible, so it's not tested as well as a normal release. That's why it is designated as... We consider this a preview release, because it’s not as well tested as our usual releases. Let us know if you try it out and run into any problems! Note that you must use the final build of Unreal Engine 5.5.0 that was released today, not the Preview version that was released awhile back. ---
**Author:** ![Kevin\_Ring](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/kevin_ring/32/2003_2.png) [@Kevin\_Ring](https://community.cesium.com/u/Kevin_Ring)\ **Post date:** [November 13, 2024, 9:33am UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544/2 "2024-11-13T09:33:19Z")
Pinned on November 13, 2024, 9:33am UTC ---
**Author:** ![ApricotXR](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/apricotxr/32/14000_2.png) [@ApricotXR](https://community.cesium.com/u/ApricotXR)\ **Post date:** [November 14, 2024, 2:02pm UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544/3 "2024-11-14T14:02:37Z")
Hi, im trying to use it in ue 5.5, but every time i try to add cesium 3D tiles it crashes. ---
**Author:** ![Kevin\_Ring](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/kevin_ring/32/2003_2.png) [@Kevin\_Ring](https://community.cesium.com/u/Kevin_Ring)\ **Post date:** [November 14, 2024, 11:06pm UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544/4 "2024-11-14T23:06:47Z")
Hi @ApricotXR, welcome to the community, and sorry you’re running into trouble. Can you tell us what platform you’re running on? Any other details you can provide would be useful as well, such as: 1. At exactly what point does it crashes? When you add a blank Cesium3DTileset to your scene? When you try to assign an asset ID? When you add one of the Quick-Add assets? 2. What does the call stack of the crash look like? 3. Does the Cesium for Unreal Samples project load successfully for you? ---
**Author:** ![ApricotXR](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/apricotxr/32/14000_2.png) [@ApricotXR](https://community.cesium.com/u/ApricotXR)\ **Post date:** [November 15, 2024, 9:37am UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544/5 "2024-11-15T09:37:49Z")
Hi, i’m running it on my PC, on Unreal Engine 5.5. 1. It crashes once i add blank Cesium3DTileset and paste the google URL with MapsAPIKey. I also tried to do the same thing with Cesium Ion but once i added Google Photorealistic 3D Tiles it crashed immediately. 2. Unhandled Exception: EXCEPTION\_ACCESS\_VIOLATION reading address 0x0000000000000008 UnrealEditor\_Engine UnrealEditor\_Renderer UnrealEditor\_Renderer UnrealEditor\_Renderer UnrealEditor\_Renderer UnrealEditor\_Engine UnrealEditor\_Engine UnrealEditor\_Engine UnrealEditor\_Engine UnrealEditor\_CesiumRuntime!loadPrimitiveGameThreadPart() [D:\a\cesium-unreal\cesium-unreal\packages\CesiumForUnreal\HostProject\Plugins\CesiumForUnreal\Source\CesiumRuntime\Private\CesiumGltfComponent.cpp:3188] UnrealEditor\_CesiumRuntime!UCesiumGltfComponent::CreateOnGameThread() [D:\a\cesium-unreal\cesium-unreal\packages\CesiumForUnreal\HostProject\Plugins\CesiumForUnreal\Source\CesiumRuntime\Private\CesiumGltfComponent.cpp:3258] UnrealEditor\_CesiumRuntime!UnrealResourcePreparer::prepareInMainThread() [D:\a\cesium-unreal\cesium-unreal\packages\CesiumForUnreal\HostProject\Plugins\CesiumForUnreal\Source\CesiumRuntime\Private\Cesium3DTileset.cpp:838] UnrealEditor\_CesiumRuntime!Cesium3DTilesSelection::TilesetContentManager::finishLoading() UnrealEditor\_CesiumRuntime!Cesium3DTilesSelection::Tileset::updateView() UnrealEditor\_CesiumRuntime!ACesium3DTileset::Tick() [D:\a\cesium-unreal\cesium-unreal\packages\CesiumForUnreal\HostProject\Plugins\CesiumForUnreal\Source\CesiumRuntime\Private\Cesium3DTileset.cpp:2202] UnrealEditor\_Engine UnrealEditor\_Engine UnrealEditor\_Engine UnrealEditor\_Core UnrealEditor\_Core UnrealEditor\_Core UnrealEditor\_Core UnrealEditor\_Engine UnrealEditor\_Engine UnrealEditor\_Engine UnrealEditor\_UnrealEd UnrealEditor\_UnrealEd UnrealEditor UnrealEditor UnrealEditor UnrealEditor UnrealEditor UnrealEditor kernel32 ntdll 3. There’s no sample project version for UE 5.5 in the marketplace, i downloaded the plugin from git. ---
**Author:** ![Kevin\_Ring](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/kevin_ring/32/2003_2.png) [@Kevin\_Ring](https://community.cesium.com/u/Kevin_Ring)\ **Post date:** [November 15, 2024, 11:18am UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544/6 "2024-11-15T11:18:26Z")
> [@ApricotXR](#): > > There’s no sample project version for UE 5.5 in the marketplace, i downloaded the plugin from git. You can get the Samples project from GitHub: > **[Releases · CesiumGS/cesium-unreal-samples](https://github.com/CesiumGS/cesium-unreal-samples/releases)** > > Getting Started Sample Project for Cesium for Unreal - CesiumGS/cesium-unreal-samples And then just change the `EngineAssociation` to `5.5` and the `EngineVersion` to `5.5.0`: > It will be very helpful to see if this project works for you. My best guess is that you’re running into this issue, but it’s only a guess: > > > Cesium for Unreal v2.10.0 for Unreal Engine 5.5 crashes with Hardware Ray Tracin…g ---
**Author:** ![ApricotXR](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/apricotxr/32/14000_2.png) [@ApricotXR](https://community.cesium.com/u/ApricotXR)\ **Post date:** [November 15, 2024, 12:13pm UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544/7 "2024-11-15T12:13:50Z")
Kevin, thank you for your response. I’ve downloaded the sample project it works perfectly until i turn on Hardware ray tracing. It’s the same issue as you mentioned. I tried the same thing with my project, and it worked after turning off the Hardware ray tracing. But the thing is that i need to use Megalights in my project which don’t work without hardware ray tracing. Is there any solution for this problem? ---
**Author:** ![pbrgle1](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/pbrgle1/32/14037_2.png) [@pbrgle1](https://community.cesium.com/u/pbrgle1)\ **Post date:** [November 17, 2024, 8:07pm UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544/8 "2024-11-17T20:07:34Z")
Same issue for me ---
**Author:** ![Kevin\_Ring](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/kevin_ring/32/2003_2.png) [@Kevin\_Ring](https://community.cesium.com/u/Kevin_Ring)\ **Post date:** [November 19, 2024, 3:11am UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544/9 "2024-11-19T03:11:40Z")
Hi everyone, we’ve fixed the bug causing the crash when Hardware Ray Tracing is enabled. If you want to try it out, you can grab the latest build from this pull request: > > > Depends on CesiumGS/cesium-native#977. > > ~Right now, this most likely won't wor…k in any \_other\_ UE version. But it does work (at least on Windows) in the UE 5.5 Preview that is currently available from the Epic Launcher.~ It works in all versions now. Instructions for installing a build from a pull request can be found here: > ---
**Author:** ![ApricotXR](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/apricotxr/32/14000_2.png) [@ApricotXR](https://community.cesium.com/u/ApricotXR)\ **Post date:** [November 19, 2024, 1:03pm UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544/10 "2024-11-19T13:03:59Z")
Thanks a lot @Kevin_Ring! ---
**Author:** ![Mathias\_Lindgren](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/mathias_lindgren/32/26741_2.png) [@Mathias\_Lindgren](https://community.cesium.com/u/Mathias_Lindgren)\ **Post date:** [November 21, 2024, 7:52am UTC](https://community.cesium.com/t/preview-release-available-for-unreal-engine-5-5/36544/11 "2024-11-21T07:52:10Z")
This solved it for me, thanks!