not quite Dishwasher suitable

The spinner works (e) perfectly ... until I had the inner basket times in a dishwasher.
The basket is made of quite soft plastic and somehow other dishes have the basket in the dishwasher "concentrated" and oval bent. The now more oval shape but unfortunately remained so, so now the basket touches on the outer bowl during the spin cycle. That should not be in an explicitly signified as Dishwasher suitable utensil!