Hello,
Thank you for contacting the support, and sorry for any inconvenience that might have been caused due to that.
Are you using Firefox by any chance?
If yes, can you please try saving the Analytics settings in Chrome or other known browser?
If you are still not able to save the settings, please let us know what Account, Property, View you want to set so we can try saving the settings on our end.
You may add this information in the Sensitive data and include your WP admin login as well. Please edit the first post on this ticket and include your WordPress login in the designated Sensitive Data section.
Please do take a complete backup of your website before sharing the information with us.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
https://wordpress.org/plugins/temporary-login-without-password/
You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):
https://wordpress.org/plugins/wp-security-audit-log/
We really look forward to helping you.
I was using safari 14.1.1 and that was the issue – changed it with Chrome and it’s all good now.
Thanks
Hello,
Glad that helped.
Please feel free to reach out to us again in case you need any other assistance.
We are here to help.
Thank you.