Screen ON and OFF will be repeated.

---

This phenomenon occurs when the "Display on notification when notified" function is turned on in the OS settings.

This application issues a notification to light the LED at the timing of the screen off.
For this reason, the OS detects the notification and lights up the screen, and the screen goes out after a lapse of time, but since this application issues a notification for LED lighting again at this off timing, the OS detects again ... and it will be repeated.

To solve the problem, turn off the function to turn on the screen at notification on the OS side.
There is also an option "Turn on screen when notified" in "Default settings/Other settings" of this application, so please use that. (You can also set for each keyword. If you want the same behavior for all keywords, please select "Follow Default settings".)