Hi Mariner, welcome to the forum
For a user like your daughter I think the only issue that will have any effect is failure of some recordings. Thanks to lots of experimentation by several members here and others the conditions which cause these is becoming a lot clearer. Ergo knowing how to reproduce the problem is a very large step in producing a fix
The other issues mainly involve DNLA playback, not likely to be an issue here.
I would hang on a week or so, if not a fix at least a workaround that works in all circumstances may be found.
It takes a while because anything you try takes at least 24 hours or longer to check the result. Ideally a fix should run for at least 8 days without actually using the box and not losing any recordings (1 day longer than the epg contains when the box is put in sby). Not easy to check as you might imagine without having lots of boxes.