Season 26 Split 2 Ending Rank changed and rewards lost (not banned)

I ended Season 26 Split 2 Diamond 4 and received the Season 26 Diamond Loading Frame. At some point since then (im guessing Season 27 Split 2) My stats say I have now ended Platinum 1, and my Season 26 Diamond Loading Frame has been removed.

I play with the same 3 stack every season (so it can't be that they cheated and got banned and rp was removed) and they still have their rewards.