After applying filters, if we r trying to create a new row or merge cells its not reflecting in the original data set
New Row and merge after filter is not working
Merging is an operation on the presentation layer - it does not alter the data.
However, adding/removing columns and rows changes the dataset. Here https://jsfiddle.net/3kh48xyj/4/ I made a demo to filter out some of the values in a column and add new rows. As we can see in the log, the dataset is altered.
Could you please guide me on replicating the issue you are encountering?