So I have a reading plan, and I add it to the dashboard. Fine.
Next day I reload Logos 8 (build 12.0.17) and in the dashboard - no reading plan!
Does the reading plan have readings for every day?
It has readings Monday to Friday - Sat/Sun omitted.
So it might help to check the homepage again today - if there's no reading for a day, thing might not show up on the homepage for exactly that reason.