Auto-save Editor Overwrites File With Empty Content (Race Condition)

[kelvinzer0]

Is there an existing issue for this?

• I have searched the existing issues and didn't find mine.

Steps to reproduce

Summary

When typing in the editor with auto-save enabled, a race condition occurs that causes the file's previous content to be overwritten with an empty file. This issue happens more frequently when working on projects with multiple files. As a result, previously written code suddenly disappears and is replaced by an empty file.

Steps to Reproduce

1. Open Maestro Mobile on Windows 10 (64-bit).
2. Create or open a project containing multiple files.
3. Open one file in the code editor.
4. Type several lines quickly.
5. Auto-save triggers.
6. Switch to another file or continue typing.
7. Randomly, the file content becomes empty after an auto-save event.

Suspected Root Cause

• Race condition in the auto-save handler.
• The write operation may occur before the editor finishes updating its internal buffer.
• Multiple auto-save events might be firing in parallel.

Temporary Workaround

To prevent data loss while waiting for a fix, disable auto-save:

• Turn off auto-save in the editor settings.
• Save files manually (Ctrl + S) until the race condition is resolved.

Additional Notes

• Issue occurs more often during fast typing or when switching between multiple files.
• Likely related to asynchronous save queue or debounce mechanism.

Actual results

Actual Behavior

• Auto-save performs an overwrite with an empty payload.
• File content becomes empty.
• There appears to be a race condition between the editor’s "edit" event and the auto-save write operation.

Expected results

Expected Behavior

• Auto-save should save only the latest valid editor content.
• It should never overwrite a file with empty data.
• Editor event synchronization should be atomic.

About app

https://maestro.dev/#maestro-studio

About environment

Environment:

• Maestro Mobile
• Windows 10 64-bit
• Multi-file project

Logs

Logs

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Maestro version

0.8.12

How did you install Maestro?

other (please specify in the text area below)

Anything else?

No response

[linear]

MAE-346