Board Thread:Support Requests - Getting Technical/@comment-36759071-20190218164043/@comment-168424-20190219201539

Several things could be the problem:
 * 1) The images were added too recently for the search cache to have them. You can ask FANDOM staff for why the problem might be happening via Special:Contact/general.
 * 2) It could be a bug. If you think it is, you can report it to Special:Contact/bug.
 * 3) FANDOM/Wikia search is notoriously horrible, so you should complain at Special:Contact/feedback.

Number 3 is the most likely answer, unfortunately.