Mobile Push Notifications

I have set the Mobile Push Notification - "When a request is assigned" only box and technicians are saying they still receive the text even when logged into ME web portal. I did not check that box or option. I only want text notices sent when they are not logged in - is there another setting somewhere or is this a small glitch/flaw with this new option?

Additionally, the "When a requester replies to a ticket assigned to him/her" and "When notes are added to a request" check boxes do not appear to work. There is no text being sent for these when checked.

Any information or assistance you can provide would be most appreciated.