This is bit weird, should not happen. Do let know if you are coming across this on Dhan app or Options Trader? Also can I request you to clear app cache or reinstall the app.
We recently pushed a important update to our TradingView library, wrote about this here - Important update for TradingView users on Dhan
Just want to be sure that the settings on your account for web isn’t conflicting with your ones in your mobile. Clearing cache / reinstalling app will help. If not, please let us know and will ask Customer Care team to connect with you.