lumi.remote.rkba01 rotate angle not display

[marvolo666]

deivce:lumi.remote.rkba01 H1 knob
state: "clockwise"
attributes: object
battery_level: null
chip_temperature: null
lqi: null
voltage: null
device_class: "switch"
icon: "hass:radiobox-blank"
friendly_name: "H1 Switch"

I turn on the debug, in msg.data I can't find the rotate angle ,not in rotate ,clockwiserotate or hold rotate