Setup
- Client: SeaDrive 3.0.23 (macOS Drive Client, current release)
- OS: macOS 26.5.1 “Tahoe”, build 25F80 (Darwin 25.5.0)
- Server: Seafile self-hosted, version , reached over a Tailscale hostname (https://.ts.net)
- Accounts: 3 accounts, all on the same server
- Second Mac: same server, same accounts, SeaDrive works fine there — so this is local to one machine
Symptoms
- Exclamation mark on the SeaDrive menu-bar icon.
- “failed to connect to background process, please try again later”.
- When I try to move files in they stall and never are uploaded
What I’ve tried
- Restarted the app — healthy for ~24 seconds (accounts load, rpc server started, sync actually works), then the extension exits and it’s broken again.
- Ruled out the network. The server answers HTTP 200 in ~40 ms from this Mac over Tailscale, and the daemon successfully cloned and synced a library before dying. The failing socket is the local pipe between the GUI and the extension, not a connection to the server.
- Full uninstall (app to Trash, removed the group container, app scripts, preferences, and the container’s contents) plus a reboot.
- Clean reinstall of 3.0.23 with zero accounts — the stale domains were still there; SeaDrive adopted them rather than removing them.
- Added one account back — it synced once, then the extension died 23 seconds later and writes stopped uploading again.