Windows 10 virtual machine is configured to open web pages in a macOS browser. When a web link from an email if used instead of a macOS browser the link is open in the Edge browser.
To resolve the issue and restore the functionality do the following:
- Start Windows 10 virtual machine and go to Windows Start Menu > Settings > Apps > Default apps
- Scroll down the list of the apps and then click on Web browser option to change it from Microsoft Edge to Open in Mac.
- Close Settings window. After these changes the functionality should be restored.