A user tried to secure a Parathread on Polkadot.js but encountered a UI bug that showed an incorrect reserve amount. This mistake led to a loss of 408.45 DOT in fees. The ParaID is 3376, and the Controller Account is 1xGrVAzbHfUfxFMRhUsDKWFcJNf1XMSNE2UqRjkYyFhrnqt. Three transactions were made on May 30, 2024, with each transaction amounting to 136.1501892767 DOT.