Ceiling light flashes when turned on

Hello. I bought 5 Yeelight ceiling lights and installed them on the ceiling. One light bulb 10 seconds after applying 220 volts begins to blink smoothly, as if resetting the settings. At the same time, it connects to the application. When you turn the lamp off and on through the application, it starts working without problems. I performed a firmware update, but the problem remains. The devices are connected via a switch. Dimmer is not used. Mains voltage 230 volts. It also starts working normally if you change the brightness in the application.
How can I fix this problem?