When you make changes to your FundEasy page, Event Webpage or logo, the changes can take a day or two to show up when posting to Facebook. This is because Facebook's cache doesn't update right away. You can clear the cache immediately, however, by using Facebook's Debugger Tool.
Simply put the URL for your FundEasy Page in the text box at the top of the page and then click "Debug". On the next page, click "Scrape Again." This will clear the Facebook cache on your page. It may take a moment or two for your page to update, but you should see the new images once the debugger page reloads.