I was unable to reproduce this glitch on my side. I created a small project based on your description and the points (bars) are shown as expected.
In general, you should not need to rebind the chart if you need to changed the IsLogarithmic property of the axis. However, it is possible that there is a bug in the control. If you have not integrated the old RadChart into your application, I suggest you remove it fully and use the new ChartView
instead. It solves many of the limitations that the old chart had, it is very flexible and easy to set up and has a great performance rate.
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