LTE(4G) icon all the time in status bar update oreo xperia xz

[Palauro]

hi, i want to know if the icon of 4G or LTE on status bar all the time is a bug or anything else and if there a solution to solve , even in the configs sayed de data is off and the notification saying the data is off the icon still there. i restarting, made clear cache, put in put out the sim card and nothing. please sony fix this