Issue with Treegrid feature Row Selection

Suite and Optimus Suite 8
#1

The Row Selection background is not working as expected in the below snippet.

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image973×909 87.5 KB

Could anyone help on this.

#2

Your mentioned snippet works well for me:

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image776×609 31.6 KB

If the problem still occurs for you please, provide a complete demo or a code snippet where the problem can be reconstructed locally.