I think this is the work of liquidmesh~ Look at the 2 transactions in your chart~ First buy in liquidmesh~ Then sell on pancakeswap~ The selection of the pool is automatic~ It should be that LM (liquidmesh) added a pool above the market price~ Due to severe lack of liquidity~ After you buy in, the price changes too much~ Not enough to exchange back your coins~ So the system automatically switched back to the normal pancakeswap pool~ Resulting in significant losses~