If you have properly set and saved your SEO and social media settings inside of ClickFunnels (Editor > Settings), but a given social media service is still not pulling in the right information, then there is definitely a caching issue (on their side).
While each social media site handles this issue differently (most just make you wait), Facebook has a handy tool to force update the cache of your page:
1.) Go to the Facebook debugger tool: https://developers.facebook.com/tools/debug
2.) Enter in the URL of the page that is acting up and not pulling in the right data/images.
3.) Click on Debug a few times (yes, strangely, you sometimes need to do it more than once). You may also need to use the Funnel Step URL and the Page Variation URL. (The Page Variation URL is the one that displays in the address bar when you visit the page).
Note: Make sure that your designated Facebook share image is larger than 200px x 200px.
And that should solve it!