Dear Olga,
I came to the conclusion that I would really need your help. I believe that something is wrong because although I updated the revslider to the latest version 6.2.8 when I open the wp-admin/options.php i see that the table reports an old version 6.2.0. Please compare the data reported in the options.phph here https://snipboard.io/Y81LTf.jpg with what reported in the plugins menu https://snipboard.io/n9EsvC.jpg
I have the feeling that this is the reason why I cannot delete the static css and they keep reappearing after i save.
I would appreciate if you have a look at it and help me to fix the issue before I push the website live.
This is a staging site with the latest version of my website that I am planning to deploy. Please be careful with it. I made a copy of the database, just in case. I would really appreciate if you can have a look at it and help me to delete the revslider static css that are blocked by google.
Thank you in advance for your help.
F.