Picture shaking…

Hello @szilard21,

For troubleshooting, please deactivate all your plugins and let the MEC remain active only, set your theme on default, then reload the page. If the issue was solved, then activate your plugins one by one and your theme, refresh your page and check to see which plugin is causing the issue.

Note: if you have a cache plugin or server cache. You need to clear its cache contents or disable them.

Best Regards