Have chart skip LTM data if same as Year End data

I'm doing financial modeling and want to create a chart that shows annual and Last Twelve Month (LTM) data but only if the LTM is different from the most recent year end. For example, if a Company's fiscal year end is 12/31/2021, but their most recent quarter is 3/31/2022, I would want to pull in both the last year end and the LTM as of 3/31/2022. But if it is February and the the LTM and last year end are the same, 12/31/2022, I would essentially be duplicating data in my chart, which I would like to avoid.

I can do If then statements to manipulate the cells to be blank etc. but I haven't found a good way for the chart to skip and scale appropriately. If I have it skip blanks, it wont show the data but I have an obvious blank space at the end of my chart. Any help would be appreciated.

I've uploaded an example but dont know how more informative it will be. Essentually I'm looking for an if/then argument for chart selection. If the date of the LTM is the same as the date for the last annual year, then I dont want the chart to select that data, if it is different then I want it included. Its more of a chart formatting issue, how do I get the chart to adjust to having a blank cell and blank date.