Copy files doesn't finish well

Hi there:

I’m using the last firmware v1.04.10_V on my WDTV Live.

When I copy or move a file(s) from a pendrive in USB1 to a HardDisk in USB2, process is success but WDTV doesn’t display any message like “Copy is done” or something. A completed bar progress is always on screen until I press “home” on remote.

It doesnt’ occur on previous beta  firmware.

Is this a firmware bug?

Yes.