Excel:如果我在同一个工作簿上打开两个窗口，为什么在第一个窗口中宏停止工作?

I am trying to set up a button in Excel to show a dual view of two separate worksheets at the same time. This is the code I've written so far (see below). So far the code seems to work. The problem is that the top window has some activex controls on the worksheet, and they seem to stop working until the bottom window is closed again. Why is this happening, and what can I do to fix it? Thanks.I am trying to set up a button in Excel to show