Permanent Conditional Formatting for Table

Good day,

I have a table that contains +/- 12,000 (A6:R12266) rows and I use several conditional formatting rules to highlight rows where the data changes from the row above in a sorted column for the visual easy of users. The conditional formatting works great however the data is the spreadsheet is constantly being modified and that is where I run into the problem. Whenever a row is inserted or deleted my rule is divided into multiple rules which is tedius to manage and also causes the formatting to appear incorrectly in some cases. I have the table defined as a named table in the name manager and I use that name for the range in the "Applies to" in conditional formatting, but as soon as I choose apply the name is converted to the current range which becomes several seprate rules and ranges as soon as the table is modified.

I dont know if the problem is in my formula or elsewhere but any help would be greatly appreaciated.

Formula to define which rows are highlighted
=$F5<>$F6

Range data applis to after chosing the tables name and clicking apply
=$A$6:$R$12266

Thanks
Jamie

Thanks for the response Pauly. Yes the table was created with Ctrl+T. I creates an example if you will see the attached file. First look at the formatting, you will see it correctly highlights row when value in first column changes from the row above. Now try adding a few rows and deleting a few rows. Note how the formatting stops working correctly and open the conditional formatting to see how it divides the rule into multiple rules which arent functioning. Any ideas how to resolve or avoid this beside going in and fixing formating whenever table is modified?Table Formatting Issue.xlsx

PaulyB that seemed to do the trick. Formula still achieves desired formating and this formula is not affected by inserting or deleting rows. Thank you for your help!
Jamie