I had a Maytag front loader with the mold problem. Turns out it's aggravated by not using the new 'e' soaps. (You use a LOT less detergent). These washers also had front door closure latch problems (The "wax" motor: sort of an electric heat activated hydraulic cylinder on the latch. And of course the bearing seal problems. Instead of paying $900 for a new drum assembly, I beat the bearings out and replaced them with water friendly, sealed ones for $35. Yeah, the front loaders use less water, spin much faster to save dryer cost, but were a royal PITA. Parts on eBay now.
BTW: The sloshing sound you hear from the drum is not water that remained in the drum, but a saline solution which is part of a self balancer system needed for the seveal periods that the drum goes thru when spinning up in super fast dry mode. I replaced mine with a super big capacity top loader with efficiency options and never looked back.