LVFS Triaged Issue: could not validate firmware

Summary

The Thunderbolt controller on the system is in safe mode. In safe mode it's not possible to query the details of the controller.

Reboot the system and try again.
If the problem persists, refer to https://github.com/hughsie/fwupd/wiki/Thunderbolt:-Validation-failed-or-unknown-device for more remediation information.