I think you mentioned you have some others like that, feel free to post links here to as many creations that didn't feature or went back to submitted.
Looks like that creation is only six hours old, and made with a custom template. While those can take a long time to feature, sounds like you saw it in your profile or the image said featured in green. If you're sure it featured and this is a recurring problem, send a feedback form with a link or links and tell them the problem you're having. The mods can see who did what, they might take action, might not, they might reply if you include an e-mail, might not.
imgflip.com/feedback