Your peers are running older versions. Force-rescan the mempool via Console > invalidateflash .
If your actual on-chain balance did not increase, the transaction is fake, regardless of what a screenshot or a "pending" notification shows. Flash Btc Transaction -core Network- 6.3 0 Download
DeFi protocols on Bitcoin sidechains require fast finality. The core network’s flash module enables atomic swaps without delays. Your peers are running older versions
Running a flash-enabled node exposes you to unique risks. Protect your assets: the transaction is fake