O.K. "BOTTOM LATCH" IS NOT A LATCH, IT IS ONLY A STABILIZER.
CHECK FOR CONTACT AT THE REAR OF THE DOOR INTERIOR TRIM PANEL AND THE DOOR OPENING WEATHERSTRIP ON THE BODY. VERY FREQUENTLY THE WEATHERSTRIP WILL START TO COME AWAY FROM THE BODY AND THAN COMBINED WITH A HINGE THAT IS SLOWLY STARTING TO SAG, THE TRIM PANEL GETS HUNG UP ON THE STRIP. YOU DONT NOTICE IT WHEN CLOSING BECAUSE YOU HAVE MORE LEVERAGE. IF THE STRIP IS PULLING AWAY, USE YOUR HANDS TO MAKE SURE IT IS PROPERLY POSITIONED ON THE BODY AND THAN YOU CAN USE A RUBBER MALLET TO GENTLY COAX IT BACK INTO THE PROPER POSITION FULLY AGAINST THE BODY. MOST LIKELY THE HINGE IS ALSO STARTING TO GO THOUGH. CHECK TO SEE IF THE BOTTOM OF THE DOOR IS STARTING TO MAKE CONTACT WITH THE SILL.