Excel 2013 :: Worksheet Freeze With Application?

I encountered a strange anomaly where a worksheet "freezes" when Application.DisplayFormulaBar = False. I can only replicate this in Excel 2013. Excel 2010, for example, works perfectly well, and as expected.

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To replicate the anomaly (Excel 2013 only):

1. In a new workbook, insert an ActiveX command button on "Sheet1", no code required.

2. Run the following code

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3. Click on the command button.

4. Now click on any cell and try to enter a value.

Is your screen "frozen"? If so, go to another sheet, return to Sheet1 and try again. Does it work?

Here's an alternative code for MyTest() that causes no problems. Can spot the difference? Is there a reasonable explanation?

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Even more curious, call the following MyTest3 on Workbook_Open() and the workbook behaves. Run MyTest3 again and the screen starts freezing(!)

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