IT Shop service item URL not showing as link after upgrade to 8.11

We have URLs on service items (ProductURL in AccProduct : ex: https://portal.xxxxx.no/_layouts/download.aspx?SourceUrl=Documents/RIS-informasjon.xlsx ) that does not show as clickable links anymore. The just show as External Link

This worked on 8.01 but not after upgrade to 8.11

Any suggestions ?

Regards

Kai