wiper issue
I checked mine and it has a composite block with two rivets attaching two arms. A non factory fix if I had to correct the issue on mine would be to utilize a stainless hex screw to fasten the dislocated arm back in place until the decision came to replace the complete assembly.
It appears to me that you have a 1998 Volante Neiman Marcus car. I have number 4 of 10 which do you have? My location is Dallas, Tx