I’m sure it shouldn’t do that.
However I have learned to my dismay, not to wash any cooking equipment in the dishwasher.
Dishwasher detergent is abrasive although usually plastic is safe on the top rack.
But even my Braun chopper bowl degraded and cracked a bit. My cheapo Ziploc containers wear like iron, dishwasher or not.
My rule of thumb on appliances is if it is not stainless steel or very cheap, just hand wash it. I am sure they will replace your housing, but less problematic to hand wash for me.