Thank you for directing me to the help. I’ve followed the instructions for Setting Up Remote Vaults (created a new vault with E2E encryption and have connected to it).
Having exited Settings my older vault (on iCloud) is still open and there is no sign of the new one.
On clicking Open Another Vault, my choices are: the one that is already open and Obsidian Help. The new vault I have created is not there.
Please, how do I open the newly created Obsidian Sync vault?