Verification seems to succeed, but device stays unverified

[kfiven]

Discussed in #3047

^{Originally posted by andrewmoise July 27, 2026}

Issue Description

When I verify my Cinny (web) device, either through the emoji or recovery key verification, it seems to succeed (UI reports success), but the device stays unverified. Even if I refresh the exact same client I just verified, and look in the list of devices, it still shows itself as unverified.

Expected Behavior

I would expect it to verify successfully

Actual Behavior

The application does not verify (as reported both by itself and by other clients such as Element Web)

Reproduction Steps

1. Open Cinny
2. Try to verify
3. It succeeds
4. Refresh and look at the list of devices

Environment

- OS: NixOS
- Browser: Ungoogled Chromium
- Cinny Web Version: app.cinny.in
- Matrix homeserver: matrix.org

Relevant Logs

I get constant spam of this in the console about once per second (regardless of verification going on):


index-B6qlmLpc.js:13 Failed to process outgoing request 0: M_UNKNOWN: MatrixError: [400] One time key signed_curve25519:AAAAAAAAAA8 already exists. Old key: {"key":"[redacted]","signatures":{"@[redacted]:matrix.org":{"ed25519:[redacted]":"[redacted]"}}}; new key: {'key': '[redacted]', 'signatures': {'@[redacted]:matrix.org': {'ed25519:[redacted]': '[redacted]'}}} (https://matrix-client.matrix.org/_matrix/client/v3/keys/upload)

Not sure whether that is related.

Additional context

Other people in chat reported similar issues, and that for them unregistering the Cinny device and then re-adding it did not show the problem.

I acknowledge that:

• I have searched the Cinny repository (both open and closed Discussions and Issues) and confirm this is not a duplicate of an existing issue or discussion.
• I have checked the "Preview" tab on all text fields to ensure that everything looks right, and have wrapped all configuration and code in code blocks with a group of three backticks (```) on separate lines.

[Yashh56]

Is anyone working on this issue? if not Can I work on this issue?

[kfiven]

@Yashh56 As per #3047 (comment), this has been fixed.