Lately I've been experiencing the reverse image search not showing me matches when there's posts that are exactly alike

• post #2449653 and https://pbs.twimg.com/media/EkdrmYIW0AYUSXf?format=jpg&name=orig
• post #2478467 and https://pbs.twimg.com/media/EmPEhMrXIAkQYZB?format=jpg&name=orig
• post #2594902 and https://pbs.twimg.com/media/EtEyzlrXcAAIu-s?format=jpg&name=orig

I can't see a single difference between these, what's going on?[/s]

Now it's working...

EDIT: post #2068772 and https://pbs.twimg.com/media/FEaQiYmWYAsbD3y?format=jpg&name=orig still don't work - link

https://pbs.twimg.com/media/Dcg3k6qVwAAhAIJ?format=jpg&name=large doesn't match to post #1633230 - but using reverse image search on post 1533230 matches itself plus a deleted post which is sourced to that image on Twitter...

Might not work on the internal Similar Images, but it works on SauceNao

Maybe it's a server strain issue