Maybe we're in the buffer phase.
If the charging treasure is charged to 99%, it shows that it cannot be charged, which is likely to be: because the charging treasure has entered the stage of buffering and maintaining the battery.
Logitech G series drive BUG, the power can not be quickly and correctly displayed in the drive, the mouse is turned off to see the breath light
Check the charger and electrical outlet for problems. If there is no problem, the gpw is damaged internally.
There are two ways to charge Logitech gpw: connect the data cable to the computer, wireless charging, you need to buy Logitech support wireless charging mouse pad