Do you have the UHD 4K Youview box?
If so, a quick run down...Quite a few forum members already posted and we recovered their Youview boxes for testing. We then identified the cause of the problem and have a patch ready to be deployed in a future software release.
That software release we are targeting is currently 31.22.40 which is scheduled in a couple of months time.
If you do not have the UHD 4K Box, please PM me.
"Always ready" could do it @Niko1
I haven't tested this but the issue is detecting the Hard-drive.
If the Youview box was in an always ready state, it could avoid this.
Settings > Power > Change Standby Mode to Always Ready