Mismatching views in editor and browser after some update

I did an update of the website - the Pro template after a longer time, maybe 1 year.
After this update, the Cornerstone editor was added and it replaced the original Pro editor, which I used for all the time before.

In the Cornerstone editor, the pages which we created before are displayed incorrectly, wrongly.
We also can not edit the pages effectively, any changes made in the cornerstone does not display to visitors.

view from editor, here original page: https://f360.cz/flex-tokeny/

Background is missing, styles not showing, even objects like borders are not displaying…

Where can be the problem, please?
The website is www.f360.cz
thanks for any help

Hello @krupicka,

Thanks for writing to us.

It might be the issue of cache or version compatibility issue. Please note you must purge all the cache whenever update the theme, plugins, and WordPress version. I would suggest you troubleshoot a few of the common issues before we investigate your settings.

  1. Testing for Plugin Conflict
  2. CSS/JS Customization
  3. Version Compatibility
  4. Disabling Cache
  5. Child Theme

If none of those work, It would be best if you could copying your live website to your staging area. and send your details in a secure note so that we can investigate your setting without breaking your live site. Please provide the following details

  • WordPress Login URL
  • Admin level username and password

You can find the Secure Note button at the bottom of your posts


Thank you.
there was a plugin conflict, probably the Autooptimizer was the problem.

Thank you for long answer, you helped me a lot :slight_smile:

Hello @krupicka,

Glad that we were able to help you. Please feel free to open a new thread if you have any more concerns.