An actual variation might not be displayed in the Experience Editor if the tested content item has the language version other than English. In this case, standard values, or the item version in English (if it exists), might be rendered as a component variation. The issue affects MVC layout components.
To resolve the issue, consider one of the following options:
Be aware that the hotfix was built for the specific Sitecore XP version and must not be installed on other Sitecore XP versions or in combination with other hotfixes. In case any other hotfixes have already been installed on a certain Sitecore XP instance, send a request for a compatibility check to Sitecore Support.
Note that the ZIP file contents must be extracted to locate installation instructions and related files inside. The hotfix must be installed on a CM instance and then synced with other instances using standard development practices.