The issue you have described is a coding error in the Events Widget as of version 6.0. The addition of a DIV and the missing UL tags in the later version of the code can lead to invalid HTML and can break the styling.
It’s important that the code output is valid and consistent with the previous versions to avoid unexpected issues such as breaking the styling.
It’s recommended that you contact the developer of the plugin or the support team and report this issue, you can also request to include the UL tags back in a coming release.
In the meantime, you can consider using an older version of the plugin or using a different plugin or widget that does not have this issue.
Also, you can try to add the missing tags by yourself but that may lead to other issues.
