Syncthing App crashes after start

Apps and Virtualization
1

After upgrading to Syncthing version 2.0.0/2.0.13 it does not start anymore.

In the logs it always shows a crash due to an invalid character.

2026-01-20 10:05:08.919333+00:00 Syncthing is ready.
2026-01-20 10:05:08.919407+00:00 Using subcommand [options announce-lanaddresses] to set value ["0"]
2026-01-20 10:05:08.936687+00:00 syncthing: error: invalid character '*' looking for beginning of value
2026-01-20 10:05:08.938203+00:00 Failed to apply. Exiting...

Rolling back also doesn’t work, due to the config version being incremented. This also applies when rolling back with snapshots.

For the time being I am stuck in a situation where the Syncthing app does not launch.

2

With version 2.0 Syncthing changed their database to SQLite and although some were able to upgrade their installs without reinstalling the Truenas app, I could not. Had to make a new dataset and host path for the new config file and reinstall along with a new shared folder.

3

I hoped to not have to do that. I guess I should probably just bite the bullet and set it up fresh again.