I have Flagstaff HW27KS ( the sister to the Rockwood H277) The order I open & close mine is :
Setting Up - Raise Roof up, lower stabilizers, pull out the dinette slide out tenting(I like to make sure the tenting is away from the bed slider rails) pull out back bed, pull out front bed, pull out dinette slide (the dinette slide is always last out, first in)
Packing up - push in dinette slide, pull all tenting above the dinette slide outside the camper body, push in back bed, push in front bed, raise stabilizers, lower roof tucking in as we go.
When ever I am pushing in my beds I always like to glance inside to check no tenting/vinyl is in the way. As far as the king bed rubbing on the dinette edge buttons, the wheel should be in a position where it takes the weight off that. It wouldn't surprise me if the wheel has been misaligned, that would be typical of Forest River!!! I had to reposition the other wheel that supports my king bed, so you might have to do the same. I have attached a pic of the dinette slide edge, wheel & underside king bed, it might give you a reference to see if yours is out.
2018 Flagstaff HW27ks
2015 Jeep Grand Cherokee Overland