The guide replaced itself with a bare spinner on every window change,
unmounting the day-picker anchor and the guide focus node - after one
day or time change the pickers silently no-oped and the remote went
dead. Picking a day also applied nothing by itself: the window only
moved after the second (time-slot) menu, so backing out of it read as
'the day picker does not work'.
The grid now stays mounted during in-session reloads behind a light
loading overlay, a day pick re-anchors the window immediately (the slot
menu is an optional refinement), D-pad SELECT arms the key-up
suppressor before opening the menu, and the day chip uses the existing
'Tomorrow' translation.