Hi,
I had issues with updating Akeeba Admin Tools 7.4.7.1 (from 7.4.6) through the normal update process in Extension Manager. It wouldn't work through Extension Manager / Update nor mysites.guru.
I had to install the download ZIP package (file name pkg_admintools_7.4.7.1.zip), which worked.
The second issue, just noticed that your release notes URL is incorrect: In the Extensions Update in Joomla Admin it is shown as https://www.akeeba.com/download/admintools/7-4-7.html however I think this should link should be to your product page for this release (?) i.e. https://www.akeeba.com/download/admintools/7-4-7-1.html.
No other issues with this update, just that it didn't update through Extension Manager as expected except by way of uploading the ZIP package.
Thanks.