Follow Joe's advice and hold the button longer and see if they close fully. The same thing for extending the room. If it still is gaped at the top when closed it should be gaped at the bottom edge of the inside fascia when extended. If the later is true, then adjustment is needed. Different slide out mechanisms are designed differently for adjustments. Some may require just wrenches some more tools not every user will have easy access to. I am not sure of your mechanical skills but an adjustment is not hard for those that have had practice, the coach is on a concrete floor or slab and a good floor jack, 6x6 block of wood the length to fit between floor jack and floor of slide out, a 3/4" of plywood to displace the weight of room on 6x6. The outside wall of the room will have to be raised to the point the room is plumb or square with the main wall and floor.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7