# Reopening project is blank **URL:** \ **Category:** Cesium for Unreal\ **Created:** [April 17, 2023, 4:47pm UTC](https://community.cesium.com/t/reopening-project-is-blank/23484 "2023-04-17T16:47:23Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Matte\_P](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/matte_p/32/12437_2.png) [@Matte\_P](https://community.cesium.com/u/Matte_P)\ **Post date:** [April 17, 2023, 4:47pm UTC](https://community.cesium.com/t/reopening-project-is-blank/23484/1 "2023-04-17T16:47:23Z")
Newb here just reopened my first UE Cesium project from last week and map is blank but the cesium objects are in the outliner. Is there a particular workflow for when reopening a project? Thanks! ---
**Author:** ![Matte\_P](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/matte_p/32/12437_2.png) [@Matte\_P](https://community.cesium.com/u/Matte_P)\ **Post date:** [April 17, 2023, 7:30pm UTC](https://community.cesium.com/t/reopening-project-is-blank/23484/2 "2023-04-17T19:30:20Z")
Getting crash with this error trying to reload tiles and get the map back: Unhandled Exception: EXCEPTION\_ACCESS\_VIOLATION reading address 0x00000000000002d0 UnrealEditor\_CesiumRuntime!Cesium3DTilesSelection::Tileset::getRootTile() UnrealEditor\_CesiumRuntime!ACesium3DTileset::OnFocusEditorViewportOnThis() [D:\build\U5M-Marketplace\Sync\LocalBuilds\PluginTemp\HostProject\Plugins\CesiumForUnreal\Source\CesiumRuntime\Private\Cesium3DTileset.cpp:465] UnrealEditor\_CesiumRuntime!TBaseFunctorDelegateInstance\ \> const &),FDefaultDelegateUserPolicy,\ \>::ExecuteIfSafe() [D:\RocketSync\5.1.0-23058290+++UE5+Release-5.1\Working\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:848] UnrealEditor\_UnrealEd UnrealEditor\_UnrealEd UnrealEditor\_SceneOutliner UnrealEditor\_SceneOutliner UnrealEditor\_SceneOutliner UnrealEditor\_SceneOutliner UnrealEditor\_SceneOutliner UnrealEditor\_SceneOutliner UnrealEditor\_SceneOutliner UnrealEditor\_Slate UnrealEditor\_Slate UnrealEditor\_Slate ---
**Author:** ![Matte\_P](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/matte_p/32/12437_2.png) [@Matte\_P](https://community.cesium.com/u/Matte_P)\ **Post date:** [April 18, 2023, 2:29pm UTC](https://community.cesium.com/t/reopening-project-is-blank/23484/3 "2023-04-18T14:29:16Z")
Another strange issue, still blank/no terrain but when I hit play on the viewport it started generating SOME terrain but then disappears when I stop the simulation. What is going on? I need to get some work done… ---
**Author:** ![janine](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/janine/32/5135_2.png) [@janine](https://community.cesium.com/u/janine)\ **Post date:** [April 18, 2023, 3:18pm UTC](https://community.cesium.com/t/reopening-project-is-blank/23484/4 "2023-04-18T15:18:44Z")
Hi @Matte_P, Are you trying to run the app in “Simulation” mode? Cesium 3D Tiles don’t load properly when that mode is checked. That’s my first guess, but if that’s not the cause, can you give us more details about your project – e.g. what version of Cesium for Unity you’re using and if you upgraded recently. ---
**Author:** ![Matte\_P](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/matte_p/32/12437_2.png) [@Matte\_P](https://community.cesium.com/u/Matte_P)\ **Post date:** [April 18, 2023, 4:33pm UTC](https://community.cesium.com/t/reopening-project-is-blank/23484/5 "2023-04-18T16:33:19Z")
There was a little button next to my scalability settings that read ‘Realtime: off’ and so I clicked that and the terrain just appeared. I don’t recall ever seeing that setting before let alone changing it. And after I switched it to ‘on’ then that option just disappeared completely. Any ideas where that option came from and where it went? ---
**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:** [May 2, 2023, 11:10pm UTC](https://community.cesium.com/t/reopening-project-is-blank/23484/6 "2023-05-02T23:10:01Z")
Unreal switches into a non-realtime mode whenever you use it from a remote desktop connection of some sort. And it may even persist after you stop using remote desktop, until you explicitly re-enable realtime. ---
**Author:** ![Matte\_P](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/matte_p/32/12437_2.png) [@Matte\_P](https://community.cesium.com/u/Matte_P)\ **Post date:** [May 2, 2023, 11:48pm UTC](https://community.cesium.com/t/reopening-project-is-blank/23484/7 "2023-05-02T23:48:53Z")
What a little golden nugget of information… thanks for that Kevin. I looked around a bit and never did see the answer to that one. Great to know and that totally makes sense. Cheers to you and your team!