Passion4Diving

Went to download the macOS version from Apple and there is no obvious download button. There is something the looks like a cloud with an arrow pointing down, but nothing happens when I click it. The cloud image just becomes a spinning circle and nothing gets downloaded. What am I missing?

Have the same problem after the upgrade to 6.3.1 with macOS 10.14.6 Hope the solution fixes both the Windows and Mac problems.