Missing "edit" button.

First of all, I want to confirm that you actually went back to the thread and saw all the posts in the thread including yours, and the Edit button was missing.

There is a reason I am asking. A common oversight is to use the "Quick Reply" textbox at the bottom of the thread to type post, and then instead of clicking on the gray "Post Quick Reply" button at bottom, we click the dark blue "Reply" rectangle to the far right of the "Quick Reply" blue bar. If you click on the gray "Post Quick Reply", the post is submitted and actually in the thread. You should see the Edit button on your post.

If you unintentionally hit the dark blue "Reply" button, that actually does not submit your post, but puts you in an advanced editing window for your post. You can then switch between bbcode or text entry, plus other features. If you don't look carefully, it looks like you submitted your post, but you're actually only in another text editing window. Then you might scratch your head and wonder where's the edit button.

I know when I first started using ProBoards, I wasn't used to that, and was left scratching my head on more than one occasion.