Unknown error occurred while loading ‘Scene Name’.
today i tryed to open my projekt and i get this error.
In the past day i had Records Key error, but not in unity3d.
Unfortunally i have no backup, can i do something to save the scene?
Please help me!
I had the same problem and don’t know how to solve! 
Did you managed to solve?
Hy,
Unfortunately i didn’t find a solution for this. I made my scene again, and now i make every day a backup.
sorry
Same boat over here. Other projects are opening fine, and the assets/scripts look ok as i imported them to another project and tested.
We sometimes get this when running our game on Android devices:
10-08 12:37:59.678: E/Unity(4016): Failed to destroy a semaphore (Device or resource busy)
10-08 12:37:59.678: E/Unity(4016):
10-08 12:37:59.678: E/Unity(4016): (Filename: Line: 38)
10-08 12:37:59.679: E/Unity(4016): Unknown error occurred while loading ‘level18’.
10-08 12:37:59.679: E/Unity(4016):
10-08 12:37:59.679: E/Unity(4016): (Filename: Line: 110)
10-08 12:39:33.845: W/Unity(4016): Timeout while trying to pause the Unity Engine.
From the timing, is seems at least the first two are related errors, but maybe they are not. Our guess at the moment is that we’re running out of memory…
I got the same Error
All my Stuff in the Scene is gone!!
There is nothing and it was something like 100 objects in there.
Unknown error occurred while loading ‘scene.unity’.
Version 5.2.2f1 Personal
I got same error too.
I opened it in HEX editor and sadly it was just fillen with nulls. There is noway to repair this.
Since today i am going to do backups every day and you should too.
Hi,
I’ve been seeing this error on android builds recently. I don’t see the semaphore issue as reported by MvD. There’s a crash log just after it, but the app doesn’t drop out. It does, however, lead to misbehaviour in the app, and progress is blocked.
Is there any information on this? Unknown error is fairly vague. could there be scene corruption? are we running out of memory?
I have more information on my own specific instance of the error. I’m seeing a .cpp and line number.
Unknown error occurred while loading ‘level37’.: 0 at ./Runtime/Misc/LoadSceneOperation.cpp:110 (1, 0, 0)
Does this perhaps help narrow it down?
further to this, I’ve ruled out scene corruption as a cause, since rebuilding the scene from scratch did not fix the problem.
One possible cause is asynchronous loading of scenes. We’re currently investigating this.
Just stumbled into this error when loading a scene, in an Android device as well. Did you find any reason or solution for it?
Same happend to me. Lost all my scene content. This is just inacceptable.
Same happened… hell opened… I dead…
Unknown error occurred while loading ‘level8’.
(Filename: ./Runtime/PreloadManager/LoadSceneOperation.cpp Line: 109)
How to solve this bug ? My game crashed.
I got same error too.
unknown error occurred while loading ‘Assets/Scenes/level.unity’.
please help how to fix it
i lost my all work
This is just inacceptable.
Unknown error occurred while loading ‘Scene Name’.
Unfortunally i have no backup, can i do something to save the scene?
After CPU freez I have preserved 0.backup. (before running unity)
My scene gives me “Unknown error occurred while loading …”
And my backup scene (0.backup) gives me the same error.
Files are different in size and also modification time is different. (0.backup newer)
Unity 2017.02.0f3
THIS IS AN UTRAGEOUS SITUATION !!!
This problem is still happening to me. Any unity moderators or unity developers can help?
Happend to me using unity 2018.2.20f1. I was cutting the power of my pc directly after closing Unity maybe I didn’t even wait for Unity to close properly. I forgot the details of how I closed the project. I suspect that Unity was not able to save the work properly and the scene was destroyed. The other scenes in my project still work only the scene I last used is gone.