# I'm having issues with 2 things, Packaged Level Actor and Objects disappearing form Viewport on build **URL:** \ **Category:** Architectural and Design Visualization\ **Tags:** unreal-engine, editor, Lighting, question\ **Created:** [February 5, 2023, 7:45am UTC](https://forums.unrealengine.com/t/im-having-issues-with-2-things-packaged-level-actor-and-objects-disappearing-form-viewport-on-build/763965 "2023-02-05T07:45:33Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![LilSnoozy](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@LilSnoozy](https://forums.unrealengine.com/u/LilSnoozy)\ **Post date:** [February 5, 2023, 7:45am UTC](https://forums.unrealengine.com/t/im-having-issues-with-2-things-packaged-level-actor-and-objects-disappearing-form-viewport-on-build/763965/1 "2023-02-05T07:45:33Z")
When I compile and run the game in the viewport, my Package Level Actor’s all get “hidden” and they have no shadows. When I try to build the level before running, or if I try to build lighting only, they disappear from viewport but are still in the outliner and only reappear when I select an option in details. What setting does this? ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/d/4/b/d4b8d4ee165a2e153a05035166b3590bf9929a95.jpeg) Before running ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/0/f/6/0f64d96ee4014368ad8fe614ae2b696eeecfc737.jpeg) While playing ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/e/d/6ed88ba97c693d9ae81347ade201c0ce7187c3a5.jpeg) After attempting to build My other problem is with the Packaged Level Actor. I made a Packed Level Instance(Prefab) in my level. When I made the prefab, everything worked how it was meant to, but in the tutorials I followed, other users were able to drag in actors from the outliner into the Packed Level Instance BP and then commit changes while editing. For some reason my static meshes are grayed out and I am not able to select them to drag in to my prefab? Has there been a change in editing prefabs? I’ve attempted a few things for the past hour and I don’t know if this is a bug, or if I did something wrong here. ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/a/b/2/ab2c5d0d70cd8cbf7c4cd8121be3add2b2ce97c6.jpeg) ---
**Author:** ![MoshBit](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/moshbit/32/638476_2.png) [@MoshBit](https://forums.unrealengine.com/u/MoshBit)\ **Post date:** [February 17, 2023, 9:39am UTC](https://forums.unrealengine.com/t/im-having-issues-with-2-things-packaged-level-actor-and-objects-disappearing-form-viewport-on-build/763965/2 "2023-02-17T09:39:34Z")
I’m sorry I can’t be more helpful, but I’m also having this issue on another project. Posting to track and see if anyone provides a solution. I’ll post here if I find one. ---
**Author:** ![LilSnoozy](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@LilSnoozy](https://forums.unrealengine.com/u/LilSnoozy)\ **Post date:** [February 17, 2023, 3:21pm UTC](https://forums.unrealengine.com/t/im-having-issues-with-2-things-packaged-level-actor-and-objects-disappearing-form-viewport-on-build/763965/3 "2023-02-17T15:21:16Z")
Thanks, I made another post since I thought i may have posted this question in the wrong spot and got responses immediately, However I believe the issue is a bug with UE 5 at the moment. It’s even worse on 5.1. Here are the links to the other threads. > [@Actors disappear in scene when making any changes to position or rotation.](https://forums.unrealengine.com/t/actors-disappear-in-scene-when-making-any-changes-to-position-or-rotation/767236): > > When I make changes to any BP object in the Viewport, My object disappears. They only reappear when i toggle a setting in the details panel(Physics tick, Hidden in game, generate physics tick, overlap generation etc.) The actor is not set to hidden by default, but it still gets hidden when trying to alter position rotation and scale. Is this a bug or a feature I can turn off? > [@Actors BP disapear when Build Geometry or Lighting UE5.1.0](https://forums.unrealengine.com/t/actors-bp-disapear-when-build-geometry-or-lighting-ue5-1-0/692183): > > Hello, I migrated my project from UE4.27.2 to UE5.1.0. Reopened my maps, things seem correct overall. I removed all options related to lumen etc in order to be closer to the performance of UE4. The problem I am having now is when building light or building geometry. As soon as I want to build light or build geometry, UE5.1 removes absolutely all actorsBP from the map. While I have also lights in these bp (static and stationary), if I let the light build finish, the map is without these bpa… ---
**Author:** ![Nekwo](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Nekwo](https://forums.unrealengine.com/u/Nekwo)\ **Post date:** [February 22, 2023, 3:27am UTC](https://forums.unrealengine.com/t/im-having-issues-with-2-things-packaged-level-actor-and-objects-disappearing-form-viewport-on-build/763965/4 "2023-02-22T03:27:37Z")
buuuump, packaged level actors buggy for me when I add anything other than meshes, Trying to get landscapes and blueprints to work to no prevail. Landscapes only work on level instances when I re-add them. ---
**Author:** ![MoshBit](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/moshbit/32/638476_2.png) [@MoshBit](https://forums.unrealengine.com/u/MoshBit)\ **Post date:** [March 3, 2023, 6:38am UTC](https://forums.unrealengine.com/t/im-having-issues-with-2-things-packaged-level-actor-and-objects-disappearing-form-viewport-on-build/763965/5 "2023-03-03T06:38:29Z")
This seems like a pretty major bug to me, is there anyone we can notify about this? ---
**Author:** ![anonymous\_user\_df50b2d4](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_df50b2d4](https://forums.unrealengine.com/u/anonymous_user_df50b2d4)\ **Post date:** [April 13, 2023, 4:26pm UTC](https://forums.unrealengine.com/t/im-having-issues-with-2-things-packaged-level-actor-and-objects-disappearing-form-viewport-on-build/763965/6 "2023-04-13T16:26:13Z")
If you set GenerateMeshDistanceFields=true, you must build all, not just build lighting only