I am facing the same problem in Ubuntu 20.04 LTS ( 5.4.0-33-generic #37-Ubuntu SMP Thu May 21 12:53:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux) , Gnome-control-center 3.36.2 .
I am facing the same problem in Ubuntu 20.04 LTS ( 5.4.0-33-generic #37-Ubuntu SMP Thu May 21 12:53:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux) , Gnome-control- center 3.36.2 .