No, I always return the to normal TV viewing before pressing the standby button. I use Samba or miniDLNA to view recordings on the TV. I always return to normal viewing before going into Standby. I have a Bower & Wilkins Panorama 2 soundbar, Panasonic OLED TV and Ultimo4K and if I don't go into standby from normal TV viewing it can get confused and not start up with one press.

The box totally freezes and I can't get access to anything on the hard drive. All I can do is turn the power off and back on, but when I do that any log files are cleared.