Duplication of tasks on resource chart

I’m a little confused: every time I allocate some resource to a task in task properties, such task showed twice on Resource chart tab for allocated resource. Is it normal? See picture. gantt_resource_allocation|476x500
Running on Kubuntu 22.04.

PS Nice app by the way!

I can’t reproduce this issue with GP 3.2.3247. I recommend installing the latest updates and, if it is reproducible, record a screencast to demonstrate the scenario.

Turned out I’m using version 3.3.3293, but anyway, I found out how to reproduce this behavior.
Double assignment happens when I allocate resource to task via right-mouse-click context menu of the task. (I use it because it much faster then going to properties of task and then on resource tab and then select resource).