K1C always prints with 50C bed

Hi. I bought a Creality cool plate. In Creality Print 6.1, I’ve set the bed type as “custom” and chosen the Cool plate. Now, when I click on a filament, it does display nozzle temp at 230 and bed at 35, but when I send it to the printer, it prints with 50 °C bed. Why and how to make the printer obey the bed temp?