Why doesn't the formula =SORT({A2:C6;F2:H6},3,1) work?

I am running Excel365 on a Mac. I want to combine the two sets of data a2:c5 and f2:h4 into a single list, but my formula in the heading

Formula:

=SORT({A2:C6;F2:H6},3,1) 

does not seem to work. It just sits there as if it was text, not even an error message. Is this a problem with Mac, or a problem with my use of the curly brackets?. I have also tried replacing the semicolon with a comma, but that does not help (error message).

The example shown is a very simplified version of a very large and complex spreadsheet. I know that in this simple example I could just copy and paste the two ranges together and then sort them, but that's not practical in my big spreadsheet because the data is constantly changing both in content and size. I'm looking for the simplest formula possible.

By the way, I have run this problem through a number of AI bots, including a few specialising in Excel solutions, but not one of them has come up with a working formula. Any suggestions for an Excel bot which works well, would be appreciated.

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