Fuck opensea. When you're the main site for NFT transactions, raking in as much as they do, there shouldn't be any hiccups.
I haven't been able to see my full collection on my pages in at least a week now.
I'll be moving to looksrare.org. They've got a token (which opensea will NEVER have) to reward users on top of staking rewards.
Worth checking out.
https://looksrare.org/explore