Fedora Media Writer Pauses When Writing to Two USB Drives

[silverhadch]

Summary:
When writing to a USB drive using Fedora Media Writer, inserting another USB drive causes the writing process to pause without any warning. The process resumes only after removing the newly inserted USB drive.

Steps to Reproduce:

1. Insert a USB drive into the system.
2. Open Fedora Media Writer (latest Flatpak version) and select the USB drive as the target.
3. Start the writing process.
4. While the writing process is ongoing, insert another USB drive (any model/type).
5. Observe that the writing process pauses without notification.
6. Remove the newly inserted USB drive.
7. Observe that the writing process resumes automatically.

Expected Behavior:

• Fedora Media Writer should continue writing regardless of another USB being inserted.
• If there's an issue with multiple drives, a clear warning should be displayed instead of silently pausing.

Actual Behavior:

• The writing process pauses immediately when a second USB drive is inserted.
• No error message or indication is given.
• The process resumes only after removing the newly inserted USB drive.

System Information:

• OS: KDE Linux x86_64
• Fedora Media Writer Version: Latest Flatpak 5.2.3
• USB Drive Models: Happens with multiple different USB drives, including SanDisk Cruzer Blade 15.3 GB.
• System Hardware: S6445 MD61489 (5.13_VEB_1AUOK026)

Additional Notes:

• This issue appears to be a general problem and is not limited to identical USB drives.
• Identification via /dev/ remains unique (e.g., sda and sdb stay distinct), so this appears to be a logic bug where Fedora Media Writer may rely on the same label or another non-unique identifier despite different device nodes.
• Further testing with different USB brands/models confirms that the issue occurs with any USB drive.

Would appreciate any insights or fixes for this issue. Thanks!