Hi there,
This needs more investigation that is why we need the URL of the page that the Revolution Slider is in. Also, I wonder if it is a settings problem of the Revolution Slider or something related to theme code.
That is why please change the theme to the default WordPress theme and ass a new test page by adding the Revolution Slider shortcode to the normal WordPress editor in the page. Also, deactivate the cornerstone if you use X.
See if the problem persists regarding the alignment.
If yes then it is something related to your settings in the rev slider and I suggest that you check this video for more information:
https://www.themepunch.com/faq/troubleshooting-tips-for-5-0/
Thank you.