iOS login fails in 2FA step only for a particular Bitwarden account

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1

This is a weird case. On my iPhone, using the “Bitwarden Password Manager” app, log in using master password works but then it fails on the 2FA step.

  1. both log in and 2FA works for other Bitwarden accounts, but fails only for a particular account.
  2. All 2FA methods, including WebAuthn and email with one-time code, fail.
  3. 2FA works fine for this account if I use other platforms such as Windows 11 (web and app), MacOS, and even another iPhone.
  4. Rebooting iOS and re-installing the Bitwarden app did not help.
  5. On the same iPhone, if I log into bitwarden.com using a browser to the same account, both log in and 2FA work fine.

In other words, 2FA fails only for this particular “iPhone/app/Bitwarden account” combination.

Does the Bitwarden app cache any per-account data on the iPhone that is not removed even when the app is deleted?

Any other idea/suggestion?

2

Another piece of information – my password manager app was updated to 2024.8.1 two days ago. Wonder if it has anything to do with it?