Commented Unassigned: Error copying cell styles when copying worksheet to another workbook [14959]

Cell styles are corrupted when copying worksheet to another workbook if the worksheet being copied contains cells with different styles but the same custom number format.

Example attached.

Comments: I am finding this to be the case too - Cell Visibility and NumberFormat are not copied. Is there a style component that goes with the worksheet? I havent looked into the EPPlus code, but find the library enormously useful, so would appreciate this feature as well. Thanks for considering it.