[Keyboard Manager] in the new editor, deleting a remapping doesn't work

Microsoft PowerToys version

0.99.1

Installation method

PowerToys auto-update

Area(s) with issue?

Keyboard Manager

Steps to reproduce

1. Create some shortcuts using the old editor
2. Enable the new editor
3. open the editor
4. Delete some remappings
5. Close the editor
6. Reopen the editor -> deleted remapping are back
7. Repeat steps 3 to 6 a few times, it never works
8. Switch back to the old editor
9. Delete the remapping
10. Re-Enable the new editor -> Deleted remappings are still here
11. Delete the new remappings
12. Close the editor
13. Reopen the editor -> remappings are finally deleted

✔️ Expected Behavior

Deleting remappings works in the new editor

❌ Actual Behavior

Deleting remappings does not work in the new editor

Upload Bug Report ZIP-file

PowerToysReport_2026-05-18-15-45-19.zip

Additional Information

This may affect only remappings that were created using the old editor ? I didn't tried to use only the new editor

Other Software

No response

Start in the Keyboard Manager new editor and reproduce the old-editor-to-new-editor remapping sequence described in the issue. Compare persistence after deleting remappings in each editor and inspect the attached PowerToysReport ZIP for relevant diagnostics. Done means remappings created with the old editor can be deleted in the new editor and remain deleted after closing and reopening it.