Error: Device not found error. while things seem to still working

[yongyi520]

Description

when i turn on cap.so desktop app, no error message should pop up but I keep on getting this message even though i can still record

Reproduction

1. I open up cap.so
2. Immediately get this error:

Additional Context

• Cap version: Version 0.5.3 (0.5.3)
• Operating system, version: Macbook air M4 Version Tahoe 26.5.1
• Device (optional):

[linear]

CAP-751

[tembo]

This appears to be related to camera preview initialization on startup. When Cap launches, it attempts to re-initialize any previously-selected camera for the preview window. If that camera isn't immediately available (which can happen with built-in cameras or external devices that take a moment to enumerate), it triggers a DeviceNotFound error.

The relevant code paths are:

• apps/desktop/src-tauri/src/lib.rs:754-773 - formats the "Device not found" message
• apps/desktop/src/routes/camera.tsx:56-61 - listens for camera-preview-error events and displays the error in the camera window
• crates/recording/src/feeds/camera.rs:572-573 - the SetInputError::DeviceNotFound error type

For microphone DeviceNotFound errors during feed restart, there's already graceful handling that just logs a warning and continues (apps/desktop/src-tauri/src/lib.rs:945-955). A similar approach for camera preview initialization on startup might resolve this - where instead of showing the error immediately, the app could either retry briefly or silently clear the camera selection.

The fact that recording still works confirms this is specifically a camera preview initialization timing issue, not a fundamental device access problem.