How can I make my Galaxy S10+ stay in Sound mode for notifications when emails and WhatsApp messages arrive? In Settings/Sounds and vibration/Sound mode I set Sound as my preferred option but after a while I find that it has reverted to Vibrate. Annoying!
Thanks Andrew. I've done what you suggested and will see what happens over the next day or so. I appreciate your help.
The cause of is your Bixby routines.
If it happens only when you are at home or work, it will be the Bixby routine turning itself on.
disable it under "advanced features" / bixby routines....