You can always create support ticket here:
https://slushpool.kayako.com/conversation/newnow this is weird a few blocks we did hit today and have been removed from the hash graph as if they were confliced/orphan blocks.. But slush is still showing them in the rewards and in the block history page and nothing is mentioning that that they were invalid blocks.
If you see them in the block history, we've got them (unles the block is marked invalid - oprhaned). Yep, this was really lucky period.

ya I got paid for them all. and yes that was a nice luck streak we had.. and as someone else pointed out to me. that only 10 lines at a time stay in the hash graph. wich I happened to have my dashboard open today 2 different times and seen whatever line was all the way to the left go away when they page would refresh its self with a new block line.