I can't copy a sheet to another sheet in a OneDrive document if it has a graph in it. Visualization is a main reason one uses spreadsheets.
There are many cases where I do analysis on one data segment and then want to repeat it with another data segment. I want to copy the sheet I just finished, put in the new data and have the next sheet done. I can't because the graph that shows the first data visually prevents the sheet from being copied.