The stench of mildew is getting stronger and

very common in the front loaders and so far there is no cure or reason why of the mold,

Remove the washer's front kick panel (which is generally held in place by 3 small screws on the bottom front of the washer) to access the water strainer. Remove the strainer. Lots of water will come out as you begin to remove the strainer so have lots of towels ready to go. Clean the strainer out, it will smell bad too. Return the strainer and kick panel and I think this will take care of your problem.

When you unload your washing machine, leave the door open. If you close it, it will seal, and will start to smell. If you leave the door open, this will allow the machine to dry.