Recently, someone kept telling me "Everything on the chain is open and transparent," and I started to want to roll my eyes... The "on-chain" you see might be the version assembled by the node you're connected to, the RPC you're using, plus some indexer. If the RPC stalls, the node is out of sync, or the index is rebuilding, that transaction on the page might appear a few minutes or even longer later; even more absurd is that at the same moment, you and I look at the same address, but the data isn't the same, like two ECG machines with poor contact. To put it simply, it's not the chain lying, it's the entry points queuing. By the way, I recently thought about the heated debate over NFT royalties; everyone is arguing over the liquidity in the secondary market, but many people haven't even figured out who records the "transaction/transfer" and when it gets displayed... Anyway, when I see "on-chain anomalies" now, I don't get defensive first, I just switch RPCs and wait for two blocks.