Golf Avant 2015 Sat Nav Map Update problems

[Sherbertboy]

I own a 2015 Golf Avant with a Discover Pro infotainment system. I successfully updated the VW satnav map sd card using the VW supplied DiscoverCare app 1.0.4 earlier in 2020. Now I am trying to do another update but when I start the exe file on my Windows 10 desktop, I get a message about needing to update the app. I click to go ahead but I just get to a page on the VW website with no further information and the app closes. Is there any way I can find a version update to DiscoverCare or get it to work in some way?