Vaultwarden sync failing on Bitwarden Desktop/Extension (2026.7.0) – works fine on Web-Vault & Mobile
Hey everyone,
I'm running into a sync issue with the latest Bitwarden clients and my self-hosted Vaultwarden instance and wanted to check if anyone else is experiencing this.
The Situation:
- Web-Vault works fine: Accessing the vault directly via the web interface works without any issues.
- Works on other devices: The sync continues to work completely fine on my Android phone and on other PCs.
- Fails on Linux Mint: After updating to Bitwarden Desktop / Browser Extension v2026.7.0 on my Linux Mint machine, the sync fails completely.
When launching the Desktop App from the terminal, I caught an unhandled error pointing to a type mismatch: Unhandled error in angular Error: Error: invalid type: JsValue(Object({"fido2Credentials":[], ...})), expected a string
What I've Already Tried:
I already attempted to fix this by modifying the array to a string in the export/data structure, but that didn't resolve the issue. Given that everything works smoothly on other devices and the Web-Vault, I suspect the underlying cause might actually be something else entirely rather than just the vault data itself.
Has anyone encountered this specific sync failure with version 2026.7.0, and what potential causes or solutions are there?