Terratec Cinergy T2 Stick HD suddenly lost

One of the two Terratec Cinergy T2 Stick HD got lost suddenly.

lsusb shows that it’s there but the firmware is not loaded:

LibreELEC:~ # lsusb

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

Bus 001 Device 004: ID 2548:1002 Pulse-Eight CEC Adapter

Bus 001 Device 003: ID eb1a:8179 eMPIA Technology, Inc. Terratec Cinergy T2 Stick HD

Bus 001 Device 006: ID eb1a:8179 eMPIA Technology, Inc. Terratec Cinergy T2 Stick HD

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Devices are directly connected to to PC (HP Prodesk 600 G3).

Devices disconnected and connected, rebooted with and without the devices connected but nothing seems to work.

Any hints on what to try next?

dmesg @ http://ix.io/4ttq

Answering to my self. It seems that the stick was OK after all.

Got it working by removing it, plugging it back in and rebooting LibreElec and repeating the steps several times. After some time it seemed to be found again and is now working correctly.