I have noticed today the Dolphin file manager does not show other mounted drives (partitions) on the left folders pane in my Kubuntu 18.04. I can enter in the folders of another drive(partition) in the main area of the Dolphin, but it does not show and follow me in the left folder pane. The folder pane still worked few days ago, till today. Can you give me any solution for this phenomena?
Thanks in advance.

Tomi

And this--disappearance--was after you checked if hide/show hidden places or hidden devices was selected?
(That right-click on the places bar... )

abury wrote:And this--disappearance--was after you checked if hide/show hidden places or hidden devices was selected?
(That right-click on the places bar... )

Thanks the tip. It has been resolved! The "Show hidden files" checkbox was unchecked. I thought this checkbox controls files and folders with beginning by dot. Yesterday I even tried to check in the "Hidden files" checkbox in the main menu, but it seems these two checkbox with same similar name are independent and they do different things. By the way, I can not remember ever checking this box in the folder pane.