Hi Krystal. Thanks for reporting this issue. I have confirmed this bug and reported it to our developers.
I determined that if an image is NOT uploaded via Community Events form, the “Review Event” email link is correct (e.g. edit post ID 251). However, if an image is uploaded, it links to the attachment (e.g. post ID 252). Therefore, a workaround might be — if it links to edit post 252 — change the URL in your browser address bar to edit post ID 251.
I’ll mark this ticket as Pending Fix, which means this thread should receive a reply once the applicable fix has been released. I apologize for this issue and appreciate your understanding and patience.