RadCity 5 Plus Step-Thru Front Suspension Warranty Issue

[BoscoMN]

I just unboxed my new RadCity 5 Plus Step-Thru and all was well until I rode up onto the driveway from the street.  It has a smooth surmountable curb but that was enough to cause a metallic clank noise.  Upon investigation, the noise was caused by the nut holding the fender onto the fork arch impacting the fork's upper frame.  Even with the pre-load set to max, there is metal to metal contact.  When the suspension is locked, no noise.  I took off the fender and it's attachment bolt, set the pre-load to about its middle setting, rode over the same course and experienced no noise.  I also did not feel the suspension bottoming out.  My weight is 190 pounds.  RadPower agreed to send me a new fork (it's on backorder).

Has anyone else had issues with their RadCity 5 Plus Step-thru suspension fork?