[kde] [Bug 443326] New: New icon not added to task manager at certain ordinal positions

[David]

https://bugs.kde.org/show_bug.cgi?id=443326

            Bug ID: 443326
           Summary: New icon not added to task manager at certain ordinal
                    positions
           Product: kde
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: david.cortes.rivera at gmail.com
  Target Milestone: ---

SUMMARY
If I configure the icons-only task manager to show only one row of icons, after
adding a certain amount of icons (and this happens at certain fixed numbers of
present icons depending on the panel size), when a new icon is added by
launching an app, the icon does not show up in the panel until adding yet
another more icon (from another app).

STEPS TO REPRODUCE
1. Right-click the icons-only task manager, go to 'Appearance', set 'Maximum
rows = 1'.
2. Start launching many apps and watch their icons popping up in the task
manager.

OBSERVED RESULT
Every time the task manager has a certain number of icons, a newly added icon
will not show up until adding yet another icon.

EXPECTED RESULT
Should show all icons, always.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.21.5
KDE Frameworks Version: 5.86.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION

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