The skirt on your cooker may feel loose after cleaning or disassembling/reassembling. This oftentimes occurs because the skirt is not seating properly. Try removing and reattaching the skirt once more. Make sure that the indentations on the sleeve align with the groves on the device. Twist counterclockwise until it locks completely.
Please reach out to us if the skirt is still loose after remove and reattaching and we'd be happy to help!