Updating apps using iTunes 12.6.5.3
I've been using iTunes 12.6.5.3 to update and sync my IOS apps for quite a while now. But a few days ago it stopped working. When I hit the "Update All Apps" button in iTunes, it displays "Downloading xxx", "Downloading yyy" and continues through all apps that's available for update, but nothing is downloaded. Looks like a server problem, but no error messages are displayed whatsoever. Updating the apps via each of my IOS devices is of course working just fine.
Any ideas?
iMac, macOS 10.12