Unity Issue Tracker - EditorSceneManager.BackupScenes saves non-dirty scenes when entering Play Mode

Fixed

Votes

1

Found in

2020.3.39f1

2021.3.13f1

2022.1.20f1

2022.2.0b10

2023.1.0a12

Issue ID

UUM-17786

Regression

No

EditorSceneManager.BackupScenes saves non-dirty scenes when entering Play Mode

-

Oct 25, 2022

How to reproduce:
1. Open the attached “EmptyProject” project
2. Select “Window” → “Analysis” → “Profiler” in the main menu
3. Enable the “Deep Profile” option
4. Change the “Timeline” option to “Hierarchy”
5. Change “Play Mode” to “Edit Mode”
6. Enter Play Mode
7. Stop the recording of the Profiler
8. Select the first frame of entering Play Mode
9. Navigate to “EditorLoop” → “Application.Tick” → “EnterPlayMode” → “EditorSceneManager.BackupScenes“
10. Observe the calls of the EditorSceneManager.BackupScenes function

Expected result: SaveScene is never called
Actual result: SaveScene is called 3 times (1 call for each Scene)

Reproducible with: 2020.3.39f1, 2021.3.13f1, 2022.1.20f1, 2022.2.0b10, 2023.1.0a12

Reproducible on: Windows 10

Resolution Note:

Fixed by https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-16018

Log in to vote on this issue

Comments (1)

Ghat-Smith

Dec 19, 2022 12:07

That's really disappointing. I made this report and I was really expecting it to be fixed.
For projects using additive scenes it would have been a huge gain in terms of productivity.
Instead of that, the issue is marked as "Duplicate" and the linked issue seems to be completely unrelated. If someone could explain me how saving scenes which are already saved on the disk would prevent losing hierarchy selection? That doesn't make sense to me.
A "won't fix" with a quick explanation would have been as much as disappointing, but at least it would have been honest...

Search Issue Tracker

1