Hello,
Thanks for contacting us, and sorry for any inconvenience that might have been caused due to that.
Please head over to WordPress dashboard > Tools > Scheduled Actions > Pending.
or you can try visiting the following URL:
https://yourdomain.com/wp-admin/tools.php?page=action-scheduler&status=pending
Run the rank_math/analytics/data_fetch scheduled action and wait for the data fetch to complete.
This is how it should look like: 
After that, please allow Rank Math a while to fetch data from Google Analytics and you should be able to see the updated data on Rank Math Analytics dashboard.
Let us know if the issue persists. Looking forward to helping you.
Thank you.
Hello, My data is still coming in as 0 hits even though I followed the steps above. Can you please take a look and see why the information isn’t running?
Thank you.
Christy
When I clicked Run it brings me to another screen that states 96 pending actions. 3 days ago I ran all 96 “pending” actions and none of the information has uploaded.
Hello,
Please make sure to update the Free plugin to the latest version as we have fixed analytics issues related to the data fetch and frequent disconnection to make sure you don’t have to keep reconnecting your Google account to get the stats. https://rankmath.com/changelog/
Even after updating the plugin, the issue persists then we might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins 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.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.