Custom CSS Code Stopped Working

Hello team,

We’ve used the custom CSS code

.comment-metadata a {display: none;}

to remove the date and time from comments, and it worked fine.
After the last updates, the code has stopped working.

It affects all the pages, including:
https://www.russiandog.net/caucasian-shepherd-ovcharka-dog.html/amp
https://www.russiandog.net/what-is-a-reasonable-rottweiler-dog-price.html/amp

Please advise.