Having the Sony drivers and an aftermarket XQD card reader just was not cutting it. I got a Sony XQD card reader on Ebay and combined with the Sony drivers (free from Sony) it now works like a champ!
[FONT=Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif]https://www.ebay.com/itm/SONY-QDA-SB1-J-XQD-card-reader-USED-EXCELLENT-CONDITION-IN-BOX/264522881562?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649[/FONT]
[FONT=Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif]https://www.ebay.com/itm/SONY-QDA-SB1-J-XQD-card-reader-USED-EXCELLENT-CONDITION-IN-BOX/264522881562?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649[/FONT]