Hi @Mayank-7996 ,
Do you mean that the horizontal and vertical lines in Tablix cannot overlap? One of the colors is separated by the other.
This is by design, when you set the border width to a larger value, the performance becomes more obvious. The border color is presented in Tablix from left to right and top to bottom. The border on the right will cover the border on the left column, and the border on the next row will cover the border on the previous row.
If I misunderstand what you mean, please feel free to correct me.
Best Regards,
Joy
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