Application icons disappearing

[road2react]

Describe the bug
Application icons disappear when monitor is turned off

Linux distribution and version
Arch Linux

GNOME Shell version
47.0

Dash-to-Panel version
63, also happens on 64

Where was Dash-to-Panel installed from?
Extensions website

Screenshots / Video captures
N/A

Additional Info
To reproduce:

• install Dash to Panel
• use multiple monitors
• unplug a monitor when icons show on both monitors
• icons disappear from panel
• to make icons show up again, toggle another extension that adds to the panel (i.e. Clipboard History)

[devmarkj]

Having a similar issue with a single monitor. When my monitor goes to sleep and locks, after I unlock it the applications disappear. I have to go into extension settings and toggle on and off show running applications. (Just tested, your method of returning icons also works)
GNOME Shell 47.0 Dash-to-Panel 64(but I believe also existed at least on 63)

[lonix1]

I think this is similar to my bug in #2201

Happens every time the system returns from sleep. I reset it by toggling the panel's position.

What error do you get? I get TypeError: panelManager is null.

[nvasunin]

Having a similar issue with TypeError: panelManager is null after returns from sleep

[road2react]

I'm not seeing TypeError: panelManager is null in the logs when this happens

[lonix1]

It shows in the error button in the "Extensions" app. It shows which extensions fail to load, and there's an error button which shows a popup with the reason (error message).

Maybe you have a different error?

[road2react]

Hmm... I'm not seeing any errors in the extensions app, it looks like everything has loaded correctly. The panel is still there and in the expected location (bottom of screen), and everything (clock, status icons, etc) is still there except for the applications.