Rocket Chat Plus - Why Public Channel is not Visible ?

Please see attached screenshot.. I created a new PUBLIC Channel, but when I login as a regular user, I don't see the Channel. Please note, when I created a PRIVATE channel, I had to invite users to my private channel, I was wondering if I also need to invite users to my PUBLIC channel too ?  I am assuming a Public Channel is Public, everyone should see it without the need to send them an invite..  Could someone shed some lights please..  Thanks.