XIAOMI Mi Bedside Lamp 2 - Unstable Light Brightness

Hi there,

Does anyone having problem with [
XIAOMI Mi Bedside Lamp 2
I have done the reset, reinstalled the app, and turned off from plug, but the lamp is still very unstable in light level.
I put maximum, goes back to a minimum, or after some seconds or minutes goes back to minimum level.

Other scenes stays ok, its just the white light that goes back to minimums after a whiles.

Any clue?