Created attachment 108370 [details]
Icons-Only-Task-Manage-Weird-Behavior

Icons-Only Task Manager (next IOTM) - Behavior of pined application changed to strange icon re-positioning when application started.

How to reproduce:
1. Have a clear panel.
2. Add IOTM on it.
3. Run and pin any two applications on the panel. Close both applications.
4. Click on the most left pinned application in order to run it.

What happens?
The icon (most left) of the  application will move (re-position) to the most right side of the IOTM.

What is expected?
The icon of the pinned started application should stay where it was/is and should just indicate the application is/was starting/started.

Observations:

It worked well in 5.10 and lower.
Id stop working in 5.11.

I am using KDE Neon stable repositories. With the Plasma 5.10 everything worked well as one would expect. With the 5.11 it changed to this weird behavior. My users who accidentally confirmed the update are screaming every morning what is happening with their apps (I know the icon is just nearby but they do not care).

For illustration please see attached screen recording.