Icon and title not changing

[Jhon_Michael_Revilla]

How to change title showing on browser tab and the icon. I already change the icon on
Config > Image Assets tab > Favicon

[Phil_Evans]

Its a known bug. There is a workaround. Search “web app favicon”

[Bertrand_BZH]

May be this video can help you :

How To Edit Website Files And Update Title and Icon Favicon