Steps to Reproduce

1. visit zss demo site or load a blank xlsx
2. enter a number, 1, at A1
3. enter a number, 2, at B1
4. enter a formula =(A1+B1) at C1
   parentheses must be kept.

Actual Result

• C1's value is #VALUE
• Originally-entered formula, =(A1,B1), is changed to =(A1,B1)

Expected Result

If you do the same steps in Excel, you will get 3 at C1 and the formula will not be changed.

Debug Information

A formula =(A1+B1)*2 works correctly.