First reload the site. Then make sure it's finished loading completely. Write your edit, click Save and leave it alone, sometimes for a minute, until it updates. Then leave it alone for another minute without reloading or closing the tab just in case.
What is wrong with the edits on this site?
Sometimes they take sometimes not, I'm having to be careful about writing.
In my experience you have to wait for a minute or two before you can edit something and have it stick.
First reload the site. Then make sure it's finished loading completely. Write your edit, click Save and leave it alone, sometimes for a minute, until it updates. Then leave it alone for another minute without reloading or closing the tab just in case.