The component does not calculate the chunks correctly. Below you could see a reproduction and as an attached file the result of building it.
Reproduction:
<TelerikChunkProgressBar Value="@Value"
Max="@MaxValue"
ChunkCount="@MaxValue">
</TelerikChunkProgressBar>
@code {
public double Value { get; set; } = 15;
public int MaxValue { get; set; } = 15;
}