Issue with trading sets for TOTY

Traded in several sets for TOTY - 83s for 85s, 85s for 87s. Thought I was going crazy but took a video and these players I traded for disappeared.

My last catch I should have at least I have video proof of this at least. But I think I lost a few more.

Evan Bouchard Off the Charts 87

Mario Lemieux milestones 87

Brianne Jenner Wildcard 87 

I was going for Quinn Hughes TOTY  and I should be close to it but my players I opened are gone, and the players I traded for them are gone.  I sent to my collection but it fails to show my players.

Also I noticed when searching for them the count of players below changed from 45 to 52 to 35 again - I think its like a bad index. Please help

Attached are two screenshots from a video I have - you can see the above players but when I go to add them they dont exist.