Plank Doesnt Update on When Apps are Opened

[Jason Knight]

When an app is opened, Plank does not update and does not show the freshly opened app in the dock.

I can switch desktops to cause Plank to update and show all open apps.

I even reinstalled my OS to try to resolve this.

Plank works for some time, then starts to fail.

Some info:
Dell XPS 9370
Ubuntu Budgie 18.04.1 LTS
Pixel Saver and Global Menu budgie applets installed (Plank still bugged if I remove these)
Gnome 3.28.2
Budgie Desktop 10.4

[fossfreedom (fossfreedom)]

Sorry. Cannot reproduce. Do you have a video showing what are doing to reproduce this?

[Jason Knight (00jknight)]

I've attached a short screen recording of the bug. I open 3 seperate applications: VSCode, VLC and Chrome and non of them show up in Plank. Note that if I switch desktops to 2 and back to 1, Plank will update and pick up the applications.

Also note: if I open 2 of these applications, like Chrome, then VSCode, Plank will stay "1 behind", meaning it will display Chrome, but not VSCode, then if I open VLC, it will display Chrome, VSCode but not VLC.

[Jason Knight (00jknight)]

Here's some warnings from when I booted Plank, and then VSCode:

jason@xps:~$ plank
[WARN 17:42:14.452874] [Environment:161] XDG_SESSION_CLASS not set in this environment!
[WARN 17:42:14.517368] [Preferences:192] '/usr/share/plank/themes/Default/dock.theme' is read-only!
[WARN 17:42:14.595696] [LIBDBUSMENU-GLIB] Unable to get session bus: Operation was cancelled
[WARN 17:42:14.599792] [LIBDBUSMENU-GLIB] Unable to get session bus: Operation was cancelled
[WARN 17:42:19.963719] [PositionManager:683] Without a draw_value there is trouble ahead for 'Visual Studio Code'

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[EricDHH (ericdhh)]

Ubuntu Budgie LTS 18.04.1

As addon my plank fades out if the mouse reach over, so nothing can ever clicked. Nor does it switch the desktop for an running application on other screen.

Is it possible to delete the whole plan config?

[fossfreedom (fossfreedom)]

@00knight have you got "Restrict to workspace" ticked in plank preferences - behaviours? What happens if you untick that option?

[Jason Knight (00jknight)]

I have Restrict to Workspace enabled.

Disabling it seems to resolve the problem.

Re-enabling it after disabling it and the problem once again appears.

Thank you for your help.

[fossfreedom (fossfreedom)]

Interesting. No idea if this is a bug with plank ... or if plank is expecting something specific from budgie-desktop that it isn't currently providing

[funicorn (funicorn)]

I use Ubuntu 20.04 in ubuntu:gnome-session. With the gnome-shell extension named pixel-saver which integrates APP title-bar into the gnome-shell dock enabled, plank won't show up when some APP is started up. I have to switch to another APP to activate it.