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Anonymous Can I review your Dax expressions to calculate values or control slicers? Let's check that to ensure you are using the correct expressions.

Or are there any interactions set up in your report that may be affecting the grid slicer? You can adjust interaction settings by selecting " Format " and selecting "Edit interactions."

You can also review the calculated column you created based on the grid values. Double-check the logic to ensure it accurately assigns data points to the correct grid. There might be a logic error in your calculated column.

Try using a different visualization, like a table or a bar chart, to see if the grid slicer works as expected with other visualizations. These will help narrow down the problem.