Public bug reported:

Package version: gnome-shell-ubuntu-extensions 50.26.04.7ubuntu

Ubuntu Dock window indicators became corrupted:
- running indicator dot appeared on top of pinned app icons
- workspace isolation setting was ignored
- some running pinned apps, including Chrome and IntelliJ, had no running 
indicator
- non-pinned Terminal icon showed the indicator correctly

Logs show repeated GNOME Shell JavaScript exceptions from Ubuntu Dock:

TypeError: can't access property "lookupById", remoteModel is undefined

The stack trace points to:
/usr/share/gnome-shell/extensions/[email protected]/appIconIndicators.js

ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: gnome-shell-ubuntu-extensions 50.26.04.7ubuntu
ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0
Uname: Linux 7.0.0-15-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Fri May  8 15:03:58 2026
InstallationDate: Installed on 2026-05-01 (7 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: gnome-shell-ubuntu-extensions
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: gnome-shell-ubuntu-extensions (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug resolute wayland-session

** Attachment added: "gnome-dock-glitch-2026-05-08-145224.tar.gz"
   
https://bugs.launchpad.net/bugs/2152036/+attachment/5968923/+files/gnome-dock-glitch-2026-05-08-145224.tar.gz

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https://bugs.launchpad.net/bugs/2152036

Title:
  Ubuntu Dock app indicators become corrupted; appIconIndicators.js
  TypeError remoteModel is undefined

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